Aetiological factors in childhood neoplasia.

Neville, A. M. and Laurence, D. J. R., eds. (1974). Report of the Workshop on the carcinoembryonic antigen (CEA): the present position and proposals for future investigation. Int. J. Cancer, 14, 1-18. Norgaard-Pedersen, B. (1976). Personal communication. N0rgaard-Pedersen, B., Albrechtsen, R., and Teilum, G. (1975). Serum alpha-foetoprotein as a marker for endodermal sinus tumour (yolk sac tumour) or a vitelline component of 'teratocarcinoma'. Acta path. microbiol. scand., 83A, 573-589. Order, S. E., Porter, M., and Hellman, S. (1971). Hodgkin's disease: evidence for a tumor-associated antigen. New Engl.J. Med., 285,471-474. Pearse, A. G. E. (1969). The cytochemistry and ultrastructure of polypeptide hormone-producing cells of the APUD series and the embryologic, physiologic and pathologic implications of the concept. J. Histochem. Cytochem., 17, 303-313. Powars, D. R., Allerton, S. E., Beierle, J., and Butler, B. B. (1972). Wilms' tumor clinical correlation with circulating mucin in three cases. Cancer (Philad.), 29, 1597-1605. Rees, L. H. and Ratcliffe, J. G. (1974). Ectopic hormone production by non-endocrine tumours. Clin. Endocr., 3, 263-299. Richter, G. W. and Lee, J. C. K. (1970). A study of two types of ferritin from rat hepatomas. Cancer Res., 30, 880-888. Rosenmann, E., Okon, E., Zaitchek, G., Dishon, T., and Boss, J. H. (1974). In Alpha-Feto-Protein: Proceedings of the International Conference, edited by R. Masseyeff, p. 345. Inserm, Paris. Stimson, W. H. (1975). Variations in the level of a pregnancyassociated a-macroglobulin in patients with cancer. J. clin. Path., 28, 868-871. Symington, T. (1969). Functional Pathology of the Human Adrenal Gland, pp. 127-130. E. and S. Livingstone, Edinburgh. Voorhess, M. L. and Gardner, L. I. (1962). Studies of catecholamine excretion by children with neural tumors. J. clin. Endocr., 22, 126-133. Willis, R. A. (1962). The Pathology ofthe Tumours of Children, pp. 7-17. Oliver and Boyd, Edinburgh and London. Wise, K. S., Allerton, S. E., Trump, G., Powars, D., and Beierle, J. W. (1975). A fetuin-like antigen from human nephroblastoma. Int. J. Cancer, 16, 199-210. Aetiological factors in childhood neoplasia