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- [2] NATURAL OCCURRENCE OF HEMOLYTIC STREPTOCOCCI IN NORMAL SCHOOL-CHILDREN AMERICAN JOURNAL OF PUBLIC HEALTH AND THE NATIONS HEALTH, 1957, 47 (08): : 995 - 1008
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- [4] The occurrence of hemolytic streptococci in the normal throat JOURNAL OF INFECTIOUS DISEASES, 1921, 29 : 524 - 527
- [5] OCCURRENCE OF GROUPABLE BETA-HEMOLYTIC STREPTOCOCCI - STUDY AMONG SCHOOL CHILDREN IN BISMARCK, ND JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1962, 181 (03): : 197 - +
- [8] PERSISTENT OCCURRENCE OF BETA-HEMOLYTIC STREPTOCOCCI IN A POPULATION OF LAGOS SCHOOL-CHILDREN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 1990, 93 (06): : 417 - 418