[Incidence of obesity among 15 and 16-year-old students].
D000293:Adolescent; D002031:Bulgaria; D005260:Female; D006801:Humans; D008297:Male; D009765:Obesity / Q000453:epidemiology*
Izuchenie rasprostranennosti ozhireniia sredi uchenikov 15--16-letnogo vozrasta.