The experience gained in the USSR with the use of international immunogenicity standards for diphtheria and tetanus toxoids, adsorbed.
D004168:Diphtheria Toxoid / Q000592:standards*; D013745:Tetanus Toxoid / Q000592:standards*; D014586:USSR; D014944:World Health Organization
D004168:Diphtheria Toxoid; D013745:Tetanus Toxoid