Medical problems during pregnancy.
D001416:Back Pain / Q000209:etiology; D015444:Exercise; D005260:Female; D006801:Humans; D009325:Nausea / Q000209:etiology; D009747:Nutritional Physiological Phenomena; D011247:Pregnancy; D011248:Pregnancy Complications / Q000628:therapy*; D011859:Radiography; D014195:Travel; D014611:Vaccination