E S Guzman Barron
E S Guzman Barron
1Lasker Foundation for Medical Research and the Department of Medicine of the University of Chicago, Chicago
2Fatigue Laboratory, Harvard University, Boston
3Department of Physiopathology, Facultad de Medicina, Lima, Peru
1,2,3,
D B Dill
D B Dill
1Lasker Foundation for Medical Research and the Department of Medicine of the University of Chicago, Chicago
2Fatigue Laboratory, Harvard University, Boston
3Department of Physiopathology, Facultad de Medicina, Lima, Peru
1,2,3,
H T Edwards
H T Edwards
1Lasker Foundation for Medical Research and the Department of Medicine of the University of Chicago, Chicago
2Fatigue Laboratory, Harvard University, Boston
3Department of Physiopathology, Facultad de Medicina, Lima, Peru
1,2,3,
Alberto Hurtado
Alberto Hurtado
1Lasker Foundation for Medical Research and the Department of Medicine of the University of Chicago, Chicago
2Fatigue Laboratory, Harvard University, Boston
3Department of Physiopathology, Facultad de Medicina, Lima, Peru
1,2,3
1Lasker Foundation for Medical Research and the Department of Medicine of the University of Chicago, Chicago
2Fatigue Laboratory, Harvard University, Boston
3Department of Physiopathology, Facultad de Medicina, Lima, Peru
1 We wish to acknowledge our gratitude to Mr. Harold Kingsmill, General Manager of the Cerro de Pasco Mining Company, for providing facilities for the trip from Lima to Ticlio.