1. Physical working capacity of children with heart disease;Adams;Lancet,1961
2. The maximal exercise test in children;Kramer;Am. J. Dis. Child.,1964
3. Comparison of work required by normal children and those with congenital heart disease to participate in childhood activities;Goldberg;J. Pediatr.,1966
4. Determination of physical working capacity: physiological and clinical study with special reference to standardization of cardiopulmonary functional tests;Wahlund;Acta med. scandinav.,1948
5. The physical working capacity of normal school children. I. California;Adams;Pediatrics,1961