|Feb-1928||Observations on the Incidence of Neoplasms in Porto Rico||Lambert, Robert A.; Burke, Alice M.|
|Feb-1928||Study of an Outbreak of Diarrhea in a Convict Camp Near San Juan||Costa Mandry, Oscar; Marín, R. A. ( see also / véase además Marín, Rafael Angel)|
|Feb-1928||Report of Bureau of Malaria Control 1926-27 Paper III||Department of Health of Porto Rico|
|Feb-1928||Review of Reviews||Department of Health of Porto Rico|
|Feb-1928||Brief News Notes||Department of Health of Porto Rico|
|Feb-1928||Statistical Reports||Department of Health of Porto Rico|
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