1. Boyce, W. H., Garvey, F. K., and Straweutler, H. E., 1956, Incidence of urinary calculi among patients in general hospitals 1948 to 1952, JAMA 161: 1437–1442.
2. Schey, H. M., Corbett, W. T., and Resnick, M. J., 1979, Prevalance rate of renal stone disease in Forsyth County, North Carolina during 1977, J. Urol. 122: 288–291.
3. Sierakowski, R., Finlayson, B., Landes, R. R., Finlayson, C. D., and Sierakowski, N., 1978, The frequence of urolithiasis in hospital discharge diagnoses in the United States, Invest. Urol. 15: 438–441.
4. Finlayson, B., 1974, Renal lithiasis in review, Urol. Clin. North Am. 1: 181–192.
5. Herring, L. C., 1962, Observations on the analysis of ten thousand urinary calculi, J. Urol., 88: 545–562.