P. Meis, M. Klebanoff, E. Thom, M. Dombrowski, B. Sibai et al., Prevention of Recurrent Preterm Delivery by 17 Alpha-Hydroxyprogesterone Caproate, New England Journal of Medicine, vol.348, issue.24, pp.2379-85, 2003.
DOI : 10.1056/NEJMoa035140

E. Papiernik, Étude en double aveugle d'un médicament prévenant la survenue prématurée de l'accouchement chez les femmes « à risque élevé » d'accouchement prématuré, Édition Schering Serie IV, vol.3, p.658, 1970.

J. Benifla, M. Dumont, M. Levardon, E. Foucher, G. Cadiot et al., Effects of micronized natural progesterone on the liver during the third trimester of pregnancy, Contracept Fertil Sex, vol.25, issue.2, pp.165-174, 1997.

A. Csapo, . Progesterone, and . Block, Progesterone ?block?, American Journal of Anatomy, vol.56, issue.2, pp.273-91, 1956.
DOI : 10.1002/aja.1000980206

J. Challis, Mechanism of Parturition and Preterm Labor, Obstetrical & Gynecological Survey, vol.55, issue.10, pp.650-60, 2000.
DOI : 10.1097/00006254-200010000-00025

B. Carbonne, D. Cabrol, M. Clerget, and G. Germain, Effects of nomegestrol acetate on spontaneous and sulprostone-induced uterine contractions in pregnant cynomolgus monkeys monitored by telemetry, American Journal of Obstetrics and Gynecology, vol.178, issue.1, pp.150-155, 1998.
DOI : 10.1016/S0002-9378(98)70643-X

B. Carbonne, E. Dallot, B. Haddad, F. Ferre, and D. Cabrol, Effects of progesterone on prostaglandin E2-induced changes in glycosaminoglycan synthesis by human cervical fibroblasts in culture, Molecular Human Reproduction, vol.6, issue.7, pp.661-665, 2000.
DOI : 10.1093/molehr/6.7.661

T. Zakar and F. Hertelendy, Progesterone withdrawal: key to parturition, American Journal of Obstetrics and Gynecology, vol.196, issue.4, pp.289-96, 2007.
DOI : 10.1016/j.ajog.2006.09.005

T. Zakar and S. Mesiano, How Does Progesterone Relax the Uterus in Pregnancy?, New England Journal of Medicine, vol.364, issue.10, pp.972-975, 2011.
DOI : 10.1056/NEJMcibr1100071

H. Von-eye-corleta, E. Capp, and M. Ferreira, Pharmacokinetics of Natural Progesterone Vaginal Suppository, Gynecologic and Obstetric Investigation, vol.58, issue.2, pp.105-113, 2004.
DOI : 10.1159/000078842

A. Northen, G. Norman, K. Anderson, L. Moseley, M. Divito et al., Follow-up of Children Exposed In Utero to 17 ??-Hydroxyprogesterone Caproate Compared With Placebo, Obstetrics & Gynecology, vol.110, issue.4, pp.865-72, 2007.
DOI : 10.1097/01.AOG.0000281348.51499.bc

L. Resseguie, J. Hick, J. Bruen, K. Noller, O. Fallon et al., Congenital malformations among offspring exposed in utero to progestins, Olmsted County, Minnesota, 1936???1974**Supported in part by the National Institutes of Health, Public Health Service, grant AM 30582., Fertility and Sterility, vol.43, issue.4, pp.514-523, 1936.
DOI : 10.1016/S0015-0282(16)48490-6

A. Cahill, A. Odibo, A. Caughey, D. Stamilio, S. Hassan et al., Universal cervical length screening and treatment with vaginal progesterone to prevent preterm birth: a decision and economic analysis, American Journal of Obstetrics and Gynecology, vol.202, issue.6, pp.548-549, 2010.
DOI : 10.1016/j.ajog.2009.12.005

E. Werner, C. Han, C. Pettker, C. Buhimschi, J. Copel et al., Universal cervical-length screening to prevent preterm birth: a cost-effectiveness analysis, Ultrasound in Obstetrics & Gynecology, vol.84, issue.1, pp.32-39, 2011.
DOI : 10.1002/uog.8911

A. Friedman, S. Srinivas, S. Parry, M. Elovitz, E. Wang et al., Can transabdominal ultrasound be used as a screening test for short cervical length?, Am J Obstet Gynecol, vol.208, issue.3, pp.190-191, 2013.

W. Grobman, E. Thom, C. Spong, J. Iams, G. Saade et al., 17 alpha-hydroxyprogesterone caproate to prevent prematurity in nulliparas with cervical length less than 30 mm, American Journal of Obstetrics and Gynecology, vol.207, issue.5, pp.390-391, 2012.
DOI : 10.1016/j.ajog.2012.09.013

E. Fonseca, E. Celik, M. Parra, M. Singh, and K. Nicolaides, Progesterone and the Risk of Preterm Birth among Women with a Short Cervix, New England Journal of Medicine, vol.357, issue.5, pp.462-471, 2007.
DOI : 10.1056/NEJMoa067815

S. Hassan, R. Romero, D. Vidyadhari, S. Fusey, J. Baxter et al., Vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix: a multicenter, randomized, double-blind, placebo-controlled trial, Ultrasound in Obstetrics & Gynecology, vol.173, issue.Pt 1, pp.18-31, 2011.
DOI : 10.1002/uog.9017

R. Romero, K. Nicolaides, A. Conde-agudelo, A. Tabor, O. Brien et al., Vaginal progesterone in women with an asymptomatic sonographic short cervix in the midtrimester decreases preterm delivery and neonatal morbidity: a systematic review and metaanalysis of individual patient data, American Journal of Obstetrics and Gynecology, vol.206, issue.2, pp.124-125, 2012.
DOI : 10.1016/j.ajog.2011.12.003

F. Fuchs, M. Senat, A. Gervaise, X. Deffieux, E. Faivre et al., Le cerclage du col ut??rin en 2008, Gyn??cologie Obst??trique & Fertilit??, vol.36, issue.11, pp.1074-83, 2008.
DOI : 10.1016/j.gyobfe.2008.07.013

J. Johnson, K. Austin, G. Jones, G. Davis, and T. King, Efficacy of 17??-Hydroxyprogesterone Caproate in the Prevention of Premature Labor, New England Journal of Medicine, vol.293, issue.14, pp.675-80, 1975.
DOI : 10.1056/NEJM197510022931401

J. Gao, N. Sun, F. Wang, and N. Hao, Effect of castor oil-diet on the initiation of labor of pregnant rat, Zhongguo Yi Xue Ke Xue Yuan Xue Bao, vol.20, issue.5, pp.367-70, 1998.

E. Da-fonseca, R. Bittar, M. Carvalho, and M. Zugaib, Prophylactic administration of progesterone by vaginal suppository to reduce the incidence of spontaneous preterm birth in women at increased risk: A randomized placebo-controlled double-blind study, American Journal of Obstetrics and Gynecology, vol.188, issue.2, pp.419-443, 2003.
DOI : 10.1067/mob.2003.41

O. Brien, J. Adair, C. Lewis, D. Hall, D. Defranco et al., Progesterone vaginal gel for the reduction of recurrent preterm birth: primary results from a randomized, double-blind, placebo-controlled trial, Ultrasound in Obstetrics and Gynecology, vol.83, issue.5, pp.687-96, 2007.
DOI : 10.1002/uog.5158

P. Rai, S. Rajaram, N. Goel, A. Gopalakrishnan, R. Agarwal et al., Oral micronized progesterone for prevention of preterm birth, International Journal of Gynecology & Obstetrics, vol.105, issue.(2), pp.40-43, 2009.
DOI : 10.1016/j.ijgo.2008.08.029

M. Glover, D. Mckenna, C. Downing, D. Smith, C. Croom et al., A Randomized Trial of Micronized Progesterone for the Prevention of Recurrent Preterm Birth, American Journal of Perinatology, vol.28, issue.05, pp.377-81, 2011.
DOI : 10.1055/s-0031-1274509

V. Berghella, A. Odibo, M. To, O. Rust, and S. Althuisius, Cerclage for Short Cervix on Ultrasonography, Obstetrics & Gynecology, vol.106, issue.1, pp.181-190, 2005.
DOI : 10.1097/01.AOG.0000168435.17200.53

V. Berghella, T. Rafael, J. Szychowski, O. Rust, and J. Owen, Cerclage for Short Cervix on Ultrasonography in Women With Singleton Gestations and Previous Preterm Birth, Obstetrics & Gynecology, vol.117, issue.3, pp.663-71, 2011.
DOI : 10.1097/AOG.0b013e31820ca847

V. Berghella, D. Figueroa, J. Szychowski, J. Owen, G. Hankins et al., 17-alpha-hydroxyprogesterone caproate for the prevention of preterm birth in women with prior preterm birth and a short cervical length, Am J Obstet Gynecol, vol.202, issue.4, pp.351-352, 2010.

J. Owen, G. Hankins, J. Iams, V. Berghella, J. Sheffield et al., Multicenter randomized trial of cerclage for preterm birth prevention in high-risk women with shortened midtrimester cervical length, Am J Obstet Gynecol, vol.201, issue.4, pp.375-376, 2009.

D. Franco, E. , O. Brien, J. Adair, C. Lewis et al., Vaginal progesterone is associated with a decrease in risk for early preterm birth and improved neonatal outcome in women with a short cervix: a secondary analysis from a randomized, double-blind, placebo-controlled trial, Ultrasound in Obstetrics and Gynecology, vol.83, issue.Suppl 283, pp.697-705, 2007.
DOI : 10.1002/uog.5159

E. Cetingoz, C. Cam, M. Sakalli, A. Karateke, C. Celik et al., Progesterone effects on preterm birth in high-risk pregnancies: a randomized placebo-controlled trial, Archives of Gynecology and Obstetrics, vol.12, issue.3, pp.423-432, 2011.
DOI : 10.1007/s00404-009-1351-2

A. Conde-agudelo, R. Romero, K. Nicolaides, T. Chaiworapongsa, O. Brien et al., Vaginal progesterone vs cervical cerclage for the prevention of preterm birth in women with a sonographic short cervix, previous preterm birth, and singleton gestation: a systematic review and indirect comparison metaanalysis, American Journal of Obstetrics and Gynecology, vol.208, issue.1, pp.42-43, 2013.
DOI : 10.1016/j.ajog.2012.10.877

J. Iams and V. Berghella, Care for women with prior preterm birth, American Journal of Obstetrics and Gynecology, vol.203, issue.2, pp.89-100, 2010.
DOI : 10.1016/j.ajog.2010.02.004

. Smfm, Progesterone and preterm birth prevention: translating clinical trials data into clinical practice, Am J Obstet Gynecol, vol.206, issue.5, pp.376-86, 2012.

A. Hartikainen-sorri, A. Kauppila, and R. Tuimala, Inefficacy of 17 alphahydroxyprogesterone caproate in the prevention of prematurity in twin pregnancy, Obstet Gynecol, vol.56, issue.6, pp.692-697, 1980.

C. Briery, E. Veillon, C. Klauser, R. Martin, S. Chauhan et al., Progesterone Does Not Prevent Preterm Births in Women with Twins, Southern Medical Journal, vol.102, issue.9, pp.900-904, 2009.
DOI : 10.1097/SMJ.0b013e3181afee12

D. Rouse, S. Caritis, A. Peaceman, A. Sciscione, E. Thom et al., A Trial of 17 Alpha-Hydroxyprogesterone Caproate to Prevent Prematurity in Twins, New England Journal of Medicine, vol.357, issue.5, pp.454-61, 2007.
DOI : 10.1056/NEJMoa070641

C. Combs, T. Garite, K. Maurel, A. Das, and M. Porto, 17-hydroxyprogesterone caproate for twin pregnancy: a double-blind, randomized clinical trial, Am J Obstet Gynecol, vol.204, issue.3, pp.221-222, 2011.

A. Lim, E. Schuit, K. Bloemenkamp, R. Bernardus, J. Duvekot et al., 17??-Hydroxyprogesterone Caproate for the Prevention of Adverse Neonatal Outcome in Multiple Pregnancies, Obstetrics & Gynecology, vol.118, issue.3, pp.513-533, 2011.
DOI : 10.1097/AOG.0b013e31822ad6aa

J. Norman, F. Mackenzie, P. Owen, H. Mactier, K. Hanretty et al., Progesterone for the prevention of preterm birth in twin pregnancy (STOPPIT): a randomised, double-blind, placebo-controlled study and meta-analysis, The Lancet, vol.373, issue.9680, pp.2034-2074, 2009.
DOI : 10.1016/S0140-6736(09)60947-8

L. Rode, K. Klein, K. Nicolaides, E. Krampl-bettelheim, and A. Tabor, Prevention of Preterm Delivery in Twin Gestations (PREDICT), Obstetrical & Gynecological Survey, vol.67, issue.1, pp.272-80, 2011.
DOI : 10.1097/OGX.0b013e3182439e97

A. Jorgensen, Z. Alfirevic, T. Smith, C. Williamson, and P. , Systematic review: Cervical stitch (cerclage) for preventing pregnancy loss: individual patient data meta-analysis, BJOG: An International Journal of Obstetrics & Gynaecology, vol.183, issue.12, pp.1460-76, 2007.
DOI : 10.1111/j.1471-0528.2007.01515.x

C. Durnwald, V. Momirova, D. Rouse, S. Caritis, A. Peaceman et al., Second trimester cervical length and risk of preterm birth in women with twin gestations treated with 17-?? hydroxyprogesterone caproate, The Journal of Maternal-Fetal & Neonatal Medicine, vol.193, issue.12, pp.1360-1364, 2010.
DOI : 10.1002/uog.5159

M. Senat, R. Porcher, N. Winer, C. Vayssiere, P. Deruelle et al., Prevention of preterm delivery by 17 alpha-hydroxyprogesterone caproate in asymptomatic twin pregnancies with a short cervix: a randomized controlled trial, Am J Obstet Gynecol, vol.208, issue.3, pp.194-195, 2013.

K. Klein, L. Rode, K. Nicolaides, E. Krampl-bettelheim, and A. Tabor, Vaginal micronized progesterone and risk of preterm delivery in high-risk twin pregnancies: secondary analysis of a placebo-controlled randomized trial and meta-analysis, Ultrasound in Obstetrics & Gynecology, vol.35, issue.3, pp.281-288, 2011.
DOI : 10.1002/uog.9092

R. Erny, A. Pigne, C. Prouvost, M. Gamerre, C. Malet et al., The effects of oral administration of progesterone for premature labor, American Journal of Obstetrics and Gynecology, vol.154, issue.3, pp.525-534, 1986.
DOI : 10.1016/0002-9378(86)90595-8

G. Noblot, P. Audra, D. Dargent, B. Faguer, and G. Mellier, The use of micronized progesterone in the treatment of menace of preterm delivery, European Journal of Obstetrics & Gynecology and Reproductive Biology, vol.40, issue.3, pp.203-212, 1991.
DOI : 10.1016/0028-2243(91)90118-5

P. Rozenberg, A. Chauveaud, P. Deruelle, M. Capelle, N. Winer et al., Prevention of preterm delivery after successful tocolysis in preterm labor by 17 alpha-hydroxyprogesterone caproate: A randomized controlled trial, American Journal of Obstetrics and Gynecology, vol.206, issue.3, pp.206-207, 2012.
DOI : 10.1016/j.ajog.2011.12.026

S. Borna and N. Sahabi, Progesterone for maintenance tocolytic therapy after threatened preterm labour: A randomised controlled trial, The Australian and New Zealand Journal of Obstetrics and Gynaecology, vol.55, issue.1, pp.58-63, 2008.
DOI : 10.1038/229208a0

C. Briery, E. Veillon, C. Klauser, R. Martin, E. Magann et al., Women with preterm premature rupture of the membranes do not benefit from weekly progesterone, Am J Obstet Gynecol, vol.204, issue.1, pp.54-55, 2011.