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035 _a8738
041 _aENG
082 _a614.05
100 _aThe Johns Hopkins University
245 0 _aAmerican journal of hygiene
_bAuthors and subjects
260 _bThe Johns Hopkins University
_c1939
300 _a118
490 _a29-60
505 _aHygiene; Public Health; American; Epidemiology; Preventive Medicine
650 _aHealth and Hygiene
_bHygiene--Periodicals | Epidemiology--APHA--Historical
942 _cBV
999 _c8736
_d8736