[Surgical treatment of synchronous hepatic metastases of colorectal cancers. Simultaneous or delayed resection?].

The surgical strategy for resectable synchronous hepatic metastases of colorectal cancer remains controversial. The retrospective analysis of our series of resectable synchronous hepatic metastases focused on the percentage of simultaneous resections, the circumstances, the indications and the results of the one-step procedure compared to the two-step strategy. From January 1, 1982 to December 31, 1995, 129 patients were operated on for resection of hepatic metastases of colorectal cancer.

An historical cohort study of mortality among salaried research and development workers of the Allied Corporation.

An historical cohort mortality study of research and development personnel (primarily chemists) actively employed on Dec 31, 1961, with at least 1 year of service with the Allied Corporation was carried out. These employees experienced lower mortality for all causes of death combined and all cancer causes combined than would be expected on the basis of the general US population. The degree of deficit in all causes of death combined was below the healthy worker effect usually associated with occupational mortality studies of production workers.