Recently I ran across an article in the Boston Globe detailing a new survey on medical errors in Massachusetts. The findings were stunning: Nearly 25% of Massachusetts residents reported a medical mistake had occurred either to them or to someone they know, and of those, half said the oversight had serious repercussions to their health. The study, along with other new research into medical mistakes and patient safety, was commissioned by the Betsy Lehman Center, an organization named for a Globe health reporter who died in 1994 when she was given an overdose of chemotherapy for her breast cancer — an overdose that was four times the correct amount.