For cancer patients, newest treatments force the ultimate decision, with no room for error

By BOB TEDESCHI @bobtedeschi

Published October 9, 2016 at 2:13 PM EDT

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Rachel Lefebvre and her husband, Fred, meet with her oncologist, Dr. Thomas George.

MATTHEW ORR

GAINESVILLE, Fla. - Three weeks earlier she'd been done. Done with the chemo and the uncertainty and the fatigue that pinned her to a bed where her husband found her sobbing after he put the boys to sleep. "When can I just pull the plug?" she asked. And now Rachel Lefebvre, 43, and her husband, Fred,…