title: Letter: A time to be born.
mesh_terms: D000773:Anesthesia, Obstetrical / Q000009:adverse effects; D001289:Attention Deficit Disorder with Hyperactivity / Q000139:chemically induced; D001294:Attitude to Health; D005260:Female; D006801:Humans; D008431:Maternal-Fetal Exchange; D009321:Natural Childbirth; D011247:Pregnancy