TY - JOUR AU1 - Hardy, Janet B. AU2 - TI - The Collaborative Perinatal Project JF - Annals of Epidemiology DO - 10.1016/s1047-2797(02)00479-9 DA - 2003-05-01 UR - https://www.deepdyve.com/lp/unpaywall/the-collaborative-perinatal-project-XFCnsjVfIR DP - DeepDyve ER -