TY - THES AU - Van Houten, Laura E. DA - 2005 DO - 10.6083/M4S75DM9 DO - DOI ID - 2268 KW - Prenatal Care KW - Fertilization KW - Epidemiology KW - Folic Acid KW - premature KW - obstetric labor KW - drug effects KW - therapeutic use L1 - https://digitalcollections.ohsu.edu/record/2268/files/2997_etd.pdf L2 - https://digitalcollections.ohsu.edu/record/2268/files/2997_etd.pdf L4 - https://digitalcollections.ohsu.edu/record/2268/files/2997_etd.pdf LK - https://digitalcollections.ohsu.edu/record/2268/files/2997_etd.pdf PY - 2005 T1 - Periconceptional folic acid supplementation and the incidence of premature delivery: a prospective cohort TI - Periconceptional folic acid supplementation and the incidence of premature delivery: a prospective cohort UR - https://digitalcollections.ohsu.edu/record/2268/files/2997_etd.pdf Y1 - 2005 ER -