Ibone Olza Fernández is a perinatal psychiatrist and associate professor of medicine at Autonomous University of Madrid. She is currently researching the effects of intrapartum oxytocin on neonatal attachment and infant social behavior. Ibone is co-founder of the Spanish consumer group El Parto Es Nuestro (Childbirth Is Ours) and of the cesarean support e-mail list Apoyocesareas. She co-authored two books: ¿Nacer por Cesarea? and Hermanos de Leche, an award-winning children’s book on extended breastfeeding.