Retinol sérico en mujeres mexicanas urbanas durante el periodo perinatal Serum retinol in urban Mexican women during the perinatal period

by Esther Casanueva, Roxana Valdés-Ramos, Frania Pfeffer, Arlene Ricalde-Moreno, Elsy García-Villegas, Carlos Meza
Published 1999-07-01