Additional file 1: Table S1. of Migraine and the risk of post-traumatic stress disorder among a cohort of pregnant women FriedmanLauren AponteChristina Perez HernandezRigoberto VelezJuan GelayeBizu SånchezSixto WilliamsMichelle PeterlinB. 2017 Socio-demographic and reproductive characteristics of the study population according to PTSD a in Lima, Peru (N = 2922). (DOCX 36 kb)