Zafar, S. Yousuf; Malin, Jennifer L.; Grambow, Steven C.; Abbott, David H.; Kolimaga, Jane T.; Zullig, Leah L.; Weeks, Jane C.; Ayanian, John Z.; Kahn, Katherine L.; Ganz, Patricia A.; Catalano, Paul J.; West, Dee W.; Provenzale, Dawn; for the Cancer Care Outcomes Research & Surveillance (Can...