1. On the causes of dyspnoea and cardiac failure in high altitudes Author(s): Donaldson, Frank, Jr. author Publication: [Philadelphia?] : [publisher not identified], [1886?] Subject(s): Dyspnea -- etiologyHeart Failure -- etiologyAltitude Sickness
2. On the causes of cardiac failure in high altitudes Author(s): Donaldson, Frank, Jr. author Publication: Buffalo : Printed by Bigelow Brothers, [1887?] Subject(s): Heart Failure -- etiologyAltitude