IUD insertion practices in the United States and Puerto Rico, 1973.
D000293:Adolescent; D000328:Adult; D000488:Allied Health Personnel; D005194:Family Practice; D005260:Female; D005843:Geography; D006176:Gynecology; D006801:Humans; D007434:Intrauterine Devices; D009774:Obstetrics; D010820:Physicians; D011315:Preventive Medicine; D011634:Public Health; D011647:Puerto Rico; D013997:Time Factors; D014481:United States