Letter: Coffee, tea, and apnea.
D001049:Apnea / Q000517:prevention & control*; D003069:Coffee; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000517:prevention & control*; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011687:Purines / Q000627:therapeutic use*; D013662:Tea
D003069:Coffee; D011687:Purines; D013662:Tea