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Funding statement
Funding for this study was provided by the John C. Erkkila, M.D., Endowment for Health and Human Performance, Good Samaritan Hospital, Corvallis, OR.
Remove constraint Funding statement: Funding for this study was provided by the John C. Erkkila, M.D., Endowment for Health and Human Performance, Good Samaritan Hospital, Corvallis, OR.