L. Dodds, S. Mcneil, D. Fell, V. Allen, A. Coombs et al., Impact of influenza exposure on rates of hospital admissions and physician visits because of respiratory illness among pregnant women, Canadian Medical Association Journal, vol.176, issue.4, pp.463-471, 2007.
DOI : 10.1503/cmaj.061435

W. Irving, D. James, T. Stephenson, P. Laing, C. Jameson et al., Influenza virus infection in the second and third trimesters of pregnancy: a clinical and seroepidemiological study, BJOG: An International Journal of Obstetrics and Gynaecology, vol.259, issue.10, pp.1282-1291, 2000.
DOI : 10.1016/S0140-6736(89)91658-9

K. Neuzil, G. Reed, E. Mitchel, L. Simonsen, and M. Griffin, Impact of Influenza on Acute Cardiopulmonary Hospitalizations in Pregnant Women, American Journal of Epidemiology, vol.148, issue.11, pp.1094-102, 1998.
DOI : 10.1093/oxfordjournals.aje.a009587

M. Pierce, J. Kurinczuk, P. Spark, P. Brocklehurst, M. Knight et al., Perinatal outcomes after maternal 2009/H1N1 infection: national cohort study, BMJ, vol.342, issue.jun14 2, p.3214, 2011.
DOI : 10.1136/bmj.d3214

URL : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3114455

W. Organization, WHO [cité 2015 mai 5]; Available from: http://www.who.int/influenza/surveillance_monitoring, 2015.

A. Valleron, E. Bouvet, P. Garnerin, J. Ménarès, I. Heard et al., A computer network for the surveillance of communicable diseases: the French experiment., American Journal of Public Health, vol.76, issue.11, pp.1289-92, 1986.
DOI : 10.2105/AJPH.76.11.1289

F. Gps and S. France, The Sentinelles network [Internet]. [cité 2015 août 12]; Available from: https, 2015.

M. Van-gelder, R. Bretveld, and N. Roeleveld, Web-based Questionnaires: The Future in Epidemiology?, American Journal of Epidemiology, vol.172, issue.11, pp.1292-1300, 2010.
DOI : 10.1093/aje/kwq291

G. Eysenbach, Infodemiology and Infoveillance: Framework for an Emerging Set of Public Health Informatics Methods to Analyze Search, Communication and Publication Behavior on the Internet, Journal of Medical Internet Research, vol.11, issue.1, p.11, 2009.
DOI : 10.2196/jmir.1157

M. Debin, C. Turbelin, T. Blanchon, I. Bonmarin, A. Falchi et al., Evaluating the Feasibility and Participants??? Representativeness of an Online Nationwide Surveillance System for Influenza in France, PLoS ONE, vol.8, issue.9, p.73675, 2013.
DOI : 10.1371/journal.pone.0073675.s001

M. Debin, V. Colizza, T. Blanchon, T. Hanslik, C. Turbelin et al., Effectiveness of 2012???2013 influenza vaccine against influenza-like illness in general population, Human Vaccines & Immunotherapeutics, vol.12, issue.3, 2015.
DOI : 10.1503/cmaj.101715

E. Pandolfi, E. Agricola, M. Gonfiantini, F. Gesualdo, M. Romano et al., Women participating in a web-based preconception study have a high prevalence of risk factors for adverse pregnancy outcomes, BMC Pregnancy and Childbirth, vol.38, issue.6, p.169, 2014.
DOI : 10.1177/1090198110389709

G. Allais, R. S. , D. Lorenzo, C. Manzoni, G. Messina et al., Migraine and pregnancy: an internet survey, Neurological Sciences, vol.23, issue.3, pp.93-102, 2013.
DOI : 10.1007/s10072-013-1394-9

W. Evans, W. Bihm, J. Szekely, D. Nielsen, P. Murray et al., Initial Outcomes From a 4-Week Follow-Up Study of the Text4baby Program in the Military Women???s Population: Randomized Controlled Trial, Journal of Medical Internet Research, vol.16, issue.5, 2015.
DOI : 10.2196/jmir.3297

R. Firestone, S. Cheng, N. Pearce, J. Douwes, F. Merletti et al., Internet-Based Birth-Cohort Studies: Is This the Future for Epidemiology?, JMIR Research Protocols, vol.4, issue.2, p.71, 2015.
DOI : 10.2196/resprot.3873

L. Richiardi, I. Baussano, L. Vizzini, J. Douwes, N. Pearce et al., Feasibility of recruiting a birth cohort through the Internet: the experience of the NINFEA cohort, European Journal of Epidemiology, vol.20, issue.12, pp.831-838, 2007.
DOI : 10.1007/s10654-007-9194-2

H. Ding, C. Black, S. Ball, S. Donahue, D. Izrael et al., Influenza vaccination coverage among pregnant women?United States, 2013?14 influenza season, MMWR Morb Mortal Wkly Rep, vol.63, pp.816-837, 2014.

D. Paolotti, A. Carnahan, V. Colizza, K. Eames, J. Edmunds et al., Web-based participatory surveillance of infectious diseases: the Influenzanet participatory surveillance experience, Clinical Microbiology and Infection, vol.20, issue.1, pp.17-21, 2014.
DOI : 10.1111/1469-0691.12477

P. Cantarelli, M. Debin, C. Turbelin, C. Poletto, T. Blanchon et al., The representativeness of a European multi-center network for influenza-like-illness participatory surveillance, BMC Public Health, vol.38, issue.2, p.984, 2014.
DOI : 10.1016/j.ssresearch.2008.03.007

URL : https://hal.archives-ouvertes.fr/hal-01311287

B. Blondel, N. Lelong, M. Kermarrec, and F. Goffinet, Trends in perinatal health in France from 1995 to 2010. Results from the French National Perinatal Surveys, Journal de Gyn??cologie Obst??trique et Biologie de la Reproduction, vol.41, issue.4, pp.1-15, 2012.
DOI : 10.1016/j.jgyn.2012.04.014

URL : https://hal.archives-ouvertes.fr/inserm-00857949

P. Bajardi, A. Vespignani, S. Funk, K. Eames, W. Edmunds et al., Determinants of Follow-Up Participation in the Internet-Based European Influenza Surveillance Platform Influenzanet, Journal of Medical Internet Research, vol.16, issue.3, p.78, 2014.
DOI : 10.2196/jmir.3010

URL : https://hal.archives-ouvertes.fr/hal-01329353

A. Lupattelli, O. Spigset, M. Twigg, K. Zagorodnikova, A. Mårdby et al., Medication use in pregnancy: a cross-sectional, multinational web-based study, BMJ Open, vol.4, issue.2, p.4365, 2014.
DOI : 10.1136/bmjopen-2013-004365

A. Adolfsson, K. Linden, C. Sparud-lundin, P. Larsson, and M. Berg, A web-based support for pregnant women and new mothers with type 1 diabetes mellitus in Sweden (MODIAB-Web): study protocol for a randomized controlled trial, Trials, vol.3, issue.Suppl, p.513, 2014.
DOI : 10.1016/j.midw.2007.01.010

A. Herbec, J. Brown, I. Tombor, S. Michie, and R. West, Pilot randomized controlled trial of an internet-based smoking cessation intervention for pregnant smokers (???MumsQuit???), Drug and Alcohol Dependence, vol.140, pp.130-136, 2014.
DOI : 10.1016/j.drugalcdep.2014.04.010

P. Bajardi, D. Paolotti, A. Vespignani, K. Eames, S. Funk et al., Association between Recruitment Methods and Attrition in Internet-Based Studies, PLoS ONE, vol.5, issue.2, p.114925, 2014.
DOI : 10.1371/journal.pone.0114925.s001

R. Nilsen, S. Vollset, H. Gjessing, R. Skjaerven, K. Melve et al., Self-selection and bias in a large prospective pregnancy cohort in Norway, Paediatric and Perinatal Epidemiology, vol.30, issue.3, pp.597-608, 2009.
DOI : 10.1111/j.1365-3016.2009.01062.x

A. Van-loon, M. Tijhuis, H. Picavet, P. Surtees, and J. Ormel, Survey Non-response in the Netherlands Effects on Prevalence Estimates and Associations, Annals of Epidemiology, vol.13, issue.2, pp.105-115, 2003.
DOI : 10.1016/S1047-2797(02)00257-0