Bergland, A., & Strand, B. H. (2019). Norwegian reference values for the Short Physical Performance Battery (SPPB): The Tromsø Study. BMC Geriatr.
शिकागो स्टाइल उद्धरणBergland, Astrid, और Bjørn Heine Strand. "Norwegian Reference Values for the Short Physical Performance Battery (SPPB): The Tromsø Study." BMC Geriatr 2019.
एमएलए उद्धरणBergland, Astrid, और Bjørn Heine Strand. "Norwegian Reference Values for the Short Physical Performance Battery (SPPB): The Tromsø Study." BMC Geriatr 2019.
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