Hemoglobin concentration of high-altitude Tibetans and Bolivian Aymara highlanders. - Beall,C.M.; Brittenham,G.M.; Strohl,K.P.; Blangero,J.; Williams-Blangero,S.; Goldstein,M.C.; Decker,M.J.; Vargas,E.; Villena,M.; Soria,R.; Alarcon,A.M.; Gonzales,C. (Am J Phys Anthropol, 1998)