[Studies on the pH level of saliva in school children].
D000293:Adolescent; D000328:Adult; D002648:Child; D006801:Humans; D006863:Hydrogen-Ion Concentration; D012424:Rural Population; D012463:Saliva / Q000032:analysis*; D012737:Sex Factors; D014505:Urban Population
Badania nad poziomem pH śliny u młodziezy szkolnej.