Não informado. (1931). Cleveland Clinic Quarterly. Cleveland Clinic Educational Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Cleveland Clinic Quarterly. Cleveland, Ohio: Cleveland Clinic Educational Foundation, 1931.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Cleveland Clinic Quarterly. Cleveland Clinic Educational Foundation, 1931.
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