1. Faber, K. Nosography in Modern Internal Medicine. New York: Paul B. Hoeber, Inc., 1923, p. 74.
2. Feinstein, A. R. Clinical Judgment. Huntington, New York: Robert E. Krieger Co., Inc., 1974.
3. Grinker, R. R., Sr., this volume, 69–83.
4. Feinstein, A. R. Clinical epidemiology: II. The identification rates of disease. Annals of Internal Medicine, 69, 1037–1061, Nov., 1968.
5. Spitzer, R. L., Sheehy, M., & Endicott, J., this volume, 1–24.