1. Abramson, A. S.: 1948, ‘Bone Disturbances in Injuries to Spinal Cord and Cauda Equina (Paraplegia); Their Prevention by Ambulation’, J. Bone Joint Surg. 30-A, 982–987.
2. Anderson, C.K., Hodgkinson, A., and Pyrah, L.N.: 1961, ‘Renal Calcification, Calculus Formation, and the Urinary Excretion of Calcium’, Lancet 2, 454–456.
3. Baker, R. and Connelly, J.P.: 1956, ‘Bilateral and Recurrent Renal Calculi; Evidence Indicating Renal Collagen Abnormality and Results of Salicylate Therapy’, J.A.M.A. 160, 1106–1110.
4. Baker, R. and Sison, F.: 1954, ‘Demonstration of Altered Tissue Mucopolysaccharides in Renal Calculus Disease by Selective Staining Techniques’, J. Urol. 72, 1032–1045.
5. Beckman, H.: 1958, Drugs - Their Natural Action and Use. W.B. Saunders Co., Philadelphia, pp. 546–547.