A Comparison of the Morbidity of Hagerstown, Maryland, School Children in 1921-1925, 1935-1936, and 1939-1940

September 1941 | Antonio Ciocco, W. R. Cameron, Elizabeth Bell

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Author(s): Antonio Ciocco; W. R. Cameron; Elizabeth Bell

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Volume 19, Issue 4 (pages 375–401)
Published in 1941