[Immunity to diphtheria toxin in Israel in comparison with other tropical countries. II. Statistical analysis].
D035843:Biomedical Research; D004165:Diphtheria / Q000517:prevention & control*; D004167:Diphtheria Toxin; D006801:Humans; D007557:Israel
D004167:Diphtheria Toxin
DIPHTHERIA/prevention and control