Não informado. (1987). Cleveland Clinic Journal of Medicine. Cleveland Clinic Educational Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Cleveland Clinic Journal of Medicine. Cleveland, Ohio: Cleveland Clinic Educational Foundation, 1987.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Cleveland Clinic Journal of Medicine. Cleveland Clinic Educational Foundation, 1987.
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