Comfort during prepared childbirth as a function of parity, reported by four classes of participant observers.
D000488:Allied Health Personnel; D005260:Female; D006801:Humans; D007745:Labor Onset; D007747:Labor Stage, First; D007748:Labor Stage, Second; D007749:Labor Stage, Third; D008297:Male; D009321:Natural Childbirth; D009774:Obstetrics; D010146:Pain; D010290:Parents; D010298:Parity; D011247:Pregnancy; D011795:Surveys and Questionnaires