Altitude training at 2690m does not increase total haemoglobin mass or sea level VO2max in world champion track cyclists - Gore, C. J.; Hahn, A.; Rice, A.; Bourdon, P.; Lawrence, S.; Walsh, C.; Stanef, T.; Barnes, P.; Parisotto, R.; Martin, D.; Pyne, D. (Journal of Science and Medicine in Sport, 1998)