REFERENCES
- Ahlstrand, C. & Tiselius, H. G. 1981. Renal stone disease in a Swedish district during one year. Scand J Urol Nephrol 15, 143.
- Andersen, D. A. 1966. A survey of the incidence of urolithiasis in Norway from 1853 to 1960. J Oslo City Hosp 16, 101.
- Bentsen, B. G. 1969. Illness and general practice. Universitetsforlaget, Oslo, 1982.
- Blacklock, N. J. 1976. Epidemiology of urolithiasis. In Scientic foundations of urology (ed. D. I.Williams & G. D.Chrisholm), vol. 1, pp. 235–243. Heinemann Medical Books, London.
- Falck Larsen, J. & Philip, J. 1962. Studies on the incidence of urolithiasis. Urol Int 13, 53.
- Jörgensen, F. S. 1978. Fund i nyrestenspatientmateriale, danske erfaringer. In Skandinavisk symposium om nyresten, pp. 91–94. AB Ferrosan, Malmö.
- Ljunghall, S. 1979. Family history of renal stones in a population study of stone-formers and healthy subjects. Br J Urol 51, 249.
- Ljunghall, S. & Hedstrand, H. 1975. Epidemiology of renal stones in a middle-aged male population. Acta Med Scand 197, 439.
- Ljunghall, S., Backman, U., Danielson, B. G., Johansson, G. & Wikström, B., 1978. Epidemiologiska synpunkter på njurstenssjukdom. In Skandinavisk symposium om nyresten, pp. 10–19. AB Ferrosan, Malmö.
- Mates, J. 1969. External factors in the genesis of urolithiasis. In Renal stone research symposium (ed. A.Hodgkinson & B. E. C.Nordin), p. 59. Churchill, London.
- Norlin, A., Lindell, B., Granberg, P. O. & Lindvall, N. 1976. Urolithiasis. A study of its frequency. Scand J Urol Nephrol 10, 150.
- Pyrah, L. N. 1979. Renal calculus, pp. 3–16. Springer, Berlin.
- Robertson, W. G., Peacock, M., Marshall, R. W., Speed, R. & Nordin, B. E. C. 1975. Seasonal variations in the composition of urine in relation to calcium stone formation. Clin Sci Mol Med 49, 597.
- Robertson, W. G., Heyburn, P. J., Peacock, M., Hanes, F. A. & Swaminathan, R. 1979. The effect of high animal protein intake on the risk of calcium stone formation in the urinary tract. Clin Sci 57, 285.
- Steensberg, J., Bartels, E. D., Bay-Nielsen, H., Berthelsen, I., Berthelsen, P., Fanøe, E., Gam, F., Hede, T., Pallesen, A. E., Pedersen, I. S., Pedersen, K. S., Simonsen, P. & Zachrau, K. 1969. Nyreog urinvejslidelser i almen praksis. Bibl Læger 169, 82.