1. Multiple primary cancers of the lung, oesophagus, and other sites;WG, I.Cahan;Cancer,1977
2. Second primary carcinomas in patients with epidermoid head and neck carcinomas;N, De Vries; der Waal I, Van; GB, Snow;Ned Tydschr Geneesk,1985
3. Lung cancer as a second primary;Reynolds, R.; Pajak, T.; Greenberg, B.;Cancer,1978
4. Incidence of multiple primary cancers. IV. Cancers of the female breast and genital organs;Schottenfeld, D.; Berg, J.W.;J Nail Cancer Inst,1971
5. Bilateral breast cancer;Urban, J.A.; Papachristou, D.; Taylor, J.;Cancer,1977