The links after "Participants" show which Southwest Oncology Group institutions are eligible to participate in this study.

The orange "Where is This Study Open?" tab at the bottom of the page shows the institutions whose Institutional Review Boards (IRBs) have approved the protocol so that it can be opened at that institution. Clicking on the Institution Name will show the points of contact for information about this study at that institution.

Participants: Members, CCOP, Medical Oncologists, CTSU, Affiliates

Eligibility Criteria: Cytogenetic studies in Leukemia patients registered on SWOG 8326, 8600, 8612, 9034, 9108, and all new leukemia treatment protocols approved as of
1990.