1. A consultative health centre for older people;Anderson, W.F.; Cowan, N.R.;Lancet,1955
2. The heart-lung coefficient in older people;Cowan, N.R.;Brit. Heart J,1959
3. The transverse diameter of the heart in older people;Cowan, N.R.;Brit. Heart J,1960
4. Estimation of cardiac area in man;Hodges, P.C.; Eyster, J.A.E.;Amer. J. Ra?ntgenol,1924
5. Clinical Auscultation of the Heart;Levine, S.A.; Harvey, W.P.,1949