APA Citation

Jackson, R. L., & Harris, B. (1934). Study of Twenty Cases of Gastric and Duodenal Ulcer in the Negro.

Citação norma Chicago

Jackson, Robert L., and Bernard Harris. Study of Twenty Cases of Gastric and Duodenal Ulcer in the Negro. 1934.

MLA Citation

Jackson, Robert L., and Bernard Harris. Study of Twenty Cases of Gastric and Duodenal Ulcer in the Negro. 1934.

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