D. Angelis, C. Drazen, J. Frizelle, F. Haug, C. Hoey et al., Clinical Trial Registration: A Statement from the International Committee of Medical Journal Editors, Annals of Internal Medicine, vol.141, issue.6, pp.477-478, 2004.
DOI : 10.7326/0003-4819-141-6-200409210-00109

I. Sim, A. Chan, A. Gulmezoglu, T. Evans, and T. Pang, Clinical trial registration: transparency is the watchword, The Lancet, vol.367, issue.9523, pp.1631-1633, 2006.
DOI : 10.1016/S0140-6736(06)68708-4

A. Mcdonald, R. Knight, M. Campbell, V. Entwistle, and A. Grant, What influences recruitment to randomised controlled trials? A review of trials funded by two UK funding agencies, Trials, vol.2, issue.Suppl 1, p.9, 2006.
DOI : 10.1016/S0197-2456(03)00020-5

C. Vale, L. Stewart, and J. Tierney, Coordinating Committee for Cancer Research Trends in UK cancer trials: results from the UK Coordinating Committee for Cancer Research National Register of Cancer Trials, National Register of Cancer Br J Cancer, vol.92, pp.811-814, 2005.

S. Cheng, M. Dietrich, and M. Dilts, A Sense of Urgency: Evaluating the Link between Clinical Trial Development Time and the Accrual Performance of Cancer Therapy Evaluation Program (NCI-CTEP) Sponsored Studies, Clinical Cancer Research, vol.16, issue.22, pp.5557-5563, 2010.
DOI : 10.1158/1078-0432.CCR-10-0133

R. Dal-ré, R. Ortega, and J. Espada, Eficiencia de los investigadores en la selección de los enfermos para ensayos clínicos: a propósito de un estudio multinacional. [Efficiency of investigators in recruitment of patients for clinical trials: a propos of a multinational study, Med Clin, vol.110, pp.521-523, 1998.

D. Malakoff, Spiraling Costs Threaten Gridlock, Science, vol.322, issue.5899, pp.210-213, 2008.
DOI : 10.1126/science.322.5899.210

J. Pich, X. Carné, J. Arnaíz, B. Gómez, and A. Trilla, Role of a research ethics committee in follow-up and publication of results, The Lancet, vol.361, issue.9362, pp.1015-1016, 2003.
DOI : 10.1016/S0140-6736(03)12799-7

P. Wise and M. Drury, Pharmaceutical trials in general practice: the first 100 protocols. An audit by the clinical research ethics committee of the Royal College of General Practitioners, BMJ, vol.313, issue.7067, pp.1245-1248, 1996.
DOI : 10.1136/bmj.313.7067.1245

E. Decullier, V. Lheritier, and F. Chapuis, Fate of biomedical research protocols and publication bias in France: retrospective cohort study, BMJ, vol.331, issue.7507, 2005.
DOI : 10.1136/bmj.38488.385995.8F

P. Caldwell, S. Hamilton, A. Tan, and J. Craig, Strategies for increasing recruitment to randomized controlled trials: systematic review, PLoS Med, vol.7, 2010.

S. Treweek, E. Mitchell, M. Pitkethly, J. Cook, and M. Kjeldstrøm, Strategies to improve recruitment to randomised controlled trials, p.13, 2010.
DOI : 10.1002/14651858.MR000013.pub5

D. Moher, C. Dulberg, and G. Wells, Statistical Power, Sample Size, and Their Reporting in Randomized Controlled Trials, JAMA: The Journal of the American Medical Association, vol.272, issue.2, pp.122-124, 1994.
DOI : 10.1001/jama.1994.03520020048013

A. Chan, A. Hróbjartsson, K. Jørgensen, P. Gøtzsche, and D. Altman, Discrepancies in sample size calculations and data analyses reported in randomised trials: comparison of publications with protocols, BMJ, vol.337, issue.dec04 1, p.2299, 2008.
DOI : 10.1136/bmj.a2299

C. Gluud, The culture of designing hepato-biliary randomised trials, Journal of Hepatology, vol.44, issue.3, pp.607-615, 2006.
DOI : 10.1016/j.jhep.2005.12.006

F. Bourgeois, S. Murthy, and K. Mandl, Outcome Reporting Among Drug Trials Registered in ClinicalTrials.gov, Annals of Internal Medicine, vol.153, issue.3, pp.158-166, 2010.
DOI : 10.7326/0003-4819-153-3-201008030-00006

D. Zarin, T. Tse, R. Williams, R. Califf, and N. Ide, The ClinicalTrials.gov Results Database ??? Update and Key Issues, New England Journal of Medicine, vol.364, issue.9, pp.852-860, 2011.
DOI : 10.1056/NEJMsa1012065

J. Blair, F. Zannad, M. Konstam, T. Cook, and B. Traver, Continental Differences in Clinical Characteristics, Management, and Outcomes in Patients Hospitalized With Worsening Heart Failure, Journal of the American College of Cardiology, vol.52, issue.20, pp.1640-1648, 2008.
DOI : 10.1016/j.jacc.2008.07.056

M. Ali, S. Atula, P. Bath, J. Grotta, and W. Hacke, Stroke Outcome in Clinical Trial Patients Deriving From Different Countries, Stroke, vol.40, issue.1, pp.35-40, 2009.
DOI : 10.1161/STROKEAHA.108.518035

L. Wallentin, R. Becker, A. Budaj, C. Cannon, and H. Emanuelsson, Ticagrelor versus Clopidogrel in Patients with Acute Coronary Syndromes, New England Journal of Medicine, vol.361, issue.11, pp.1045-1057, 2009.
DOI : 10.1056/NEJMoa0904327

P. Kalb and K. Koehler, Legal Issues in Scientific Research, JAMA, vol.287, issue.1, pp.85-91, 2002.
DOI : 10.1001/jama.287.1.85

R. Steen, Retractions in the scientific literature: is the incidence of research fraud increasing?, Journal of Medical Ethics, vol.37, issue.4, pp.249-253, 2011.
DOI : 10.1136/jme.2010.040923

A. European-medicines, Clinical trials submitted in marketing authorization applications to the EMA. Overview of patient recruitment and geographical location of investigator sites, Available, vol.12, 2009.

G. Boulton, M. Rawlins, P. Vallance, and M. Walport, Science as a public enterprise: the case for open data, The Lancet, vol.377, issue.9778, pp.1633-1635, 2011.
DOI : 10.1016/S0140-6736(11)60647-8

A. Chan, Access to clinical trial data, BMJ, vol.342, issue.jan12 2, p.117, 2011.
DOI : 10.1136/bmj.d80
URL : http://www.bmj.com/cgi/content/short/342/jan12_2/d80

M. Walport and P. Brest, Sharing research data to improve public health, The Lancet, vol.377, issue.9765, pp.537-539, 2011.
DOI : 10.1016/S0140-6736(10)62234-9

S. Hopewell, D. Altman, D. Moher, and K. Schulz, Endorsement of the CONSORT Statement by high impact factor medical journals: a survey of journal editors and journal 'Instructions to Authors', Trials, vol.141, issue.6, p.20, 2008.
DOI : 10.7326/0003-4819-141-6-200409210-00109

S. Treweek and K. Loudon, Incomplete reporting of recruitment information in breast cancer trials published between 2003 and 2008, Journal of Clinical Epidemiology, vol.64, issue.11, pp.1216-1222, 2011.
DOI : 10.1016/j.jclinepi.2011.01.007