Sexually transmitted diseases. Trends in gonorrhoea, 1980-1989.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002170:Canada / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006069:Gonorrhea / Q000453:epidemiology* / Q000517:prevention & control / Q000635:transmission; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011322:Primary Prevention / Q000592:standards; D012737:Sex Factors