por Suárez, Claudia [autor] | Santos, Elsa [autor] | Rodríguez, Gabriela [autor] | Reyes, Hilda [autor] | Vernon, Ricardo [autor] | Contreras, Xipatl [autor] | Ortiz, Olivia [autor] | Brenes, Victor [autor] | Mesa, Alicia [autor].
por American College of Obstetricians and Gynecologists.