Etiology of ectopic pregnancy:  a new concept.
D001341:Autonomic Nervous System; D001342:Autonomic Nervous System Diseases; D004194:Disease; D004644:Emotions; D005149:Facial Expression; D005260:Female; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000209:etiology*
AUTONOMIC NERVOUS SYSTEM/diseases; EMOTIONS; FACIAL EXPRESSION/diseases; PREGNANCY, ECTOPIC/etiology and pathogenesis