Altitude acclimatization and blood volume: effects of exogenous erythrocyte volume expansion. - Sawka,M.N.; Young,A.J.; Rock,P.B.; Lyons,T.P.; Boushel,R.; Freund,B.J.; Muza,S.R.; Cymerman,A.; Dennis,R.C.; Pandolf,K.B.; Valeri,C.R. (J Appl Physiol, 1996)