Não informado. (2004). Journal of the Oslo City Hospitals. Medical Research Foundation of Christian Plesner.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Oslo City Hospitals. Oslo: Medical Research Foundation of Christian Plesner, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Oslo City Hospitals. Medical Research Foundation of Christian Plesner, 2004.
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