 supplemental civilian insurance, feasibility of linking electronic patient databases to each other and to the questionnaire data, and available characteristics of the participants and the non-participants; Part 2 Using MDR files, the Defense Health Agency DHA will provide frequencies on place of cancer diagnosis and treatment military treatment facility vs. civilian hospital and availability of treatment data for eligible beneficiaries with a diagnosis of cancer other than nonmelanoma skin cancer within the past 12 months. No individual level data will be collected. The protocol is formatted for submission to the WRNMMC. 