Contraceptive tubal sterilization rate increases more than twice during the period 1970--1976.
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D000367:Age Factors; D005260:Female; D006801:Humans; D013246:Sterilization, Tubal / Q000639:trends*; D014481:United States; D044465:White People