[Significance of Schick's reaction in lowering of morbidity of diphtheria].
D035843:Biomedical Research; D004165:Diphtheria / Q000517:prevention & control*; D006801:Humans
DIPHTHERIA/prevention and control
K voprosu o znachenii reaktsii Shika v sisteme meropriiatii po snizheniiu zabolevaemosti difteriei.