1. The internist as sports medicine physician;Cantwell;Ann Intern Med,1992
2. Performance and metabolic responses to a high caffeine dose during prolonged exercise;Graham;J Appl Physiol,1991
3. Better dead than second: blood doping, erythropoietin, and athletes;Eichner;J Lab Clin Med,1992
4. Ultramarathoning: the next challenge;Osler,1979