Oral Glucose Tolerance Test and Post Partum Diagnosis of Diabetes Mellitus, Type 2 (DT2 Post-Partum)

"Patients will be contacted by mail with sending of the information notice to ask them to participate in the study.~If they don't reply, the subjects will be called by phone by the investigator to collect their non opposition of participation at the study.~During this call, the investigator will be able to answer all the questions about the study.~The report of this telephone conversation will be register in the medical file of the patient.~Then, we will collect informatic data from the hospital concerning the patients.~After that they will be contacted by phone to answer a survey. Beside, another secure survey will be send by email to each patient's family doctor.~To finish, crossing data between those of the patients and the family doctor and anonymisation of the data."