Tetanus in bulgaria.
D000328:Adult; D000367:Age Factors; D000368:Aged; D002031:Bulgaria; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007109:Immunity; D007114:Immunization; D008297:Male; D008875:Middle Aged; D013742:Tetanus / Q000453:epidemiology* / Q000517:prevention & control; D013745:Tetanus Toxoid / Q000627:therapeutic use
D013745:Tetanus Toxoid