Ectopic pregnancy. The problem of diagnosis.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003937:Diagnosis, Differential; D005260:Female; D005831:Genital Diseases, Female / Q000150:complications / Q000175:diagnosis*; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis; D011258:Pregnancy Tests; D011271:Pregnancy, Ectopic / Q000175:diagnosis*; D044469:Racial Groups