VDRL screening of urban and rural population.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D006306:Health Surveys; D006801:Humans; D007194:India; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D012424:Rural Population; D012737:Sex Factors; D013588:Syphilis Serodiagnosis; D014505:Urban Population