作者单位: | [1]Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire [2]Maine Medical Center, Portland, Maine [3]Dartmouth Medical School, Hanover, New Hampshire [4]Beth Israel Deaconess Medical Center, Boston, Massachusetts [5]Portsmouth Regional Hospital, Portsmouth, New Hampshire [6]Fletcher Allen Health Care, Burlington, Vermont [7]New England Heart Institute, Catholic Medical Center, Manchester, New Hampshire [8]Eastern Maine Medical Center, Bangor, Maine [9]Central Maine Medical Center, Lewiston, Maine [10]Concord Hospital, Concord, New Hampshire [11]The Dartmouth Institute for Health Policy and Clinical Practice, Dartmouth College, Lebanon, New Hampshire [12]不详, Dartmouth College, Lebanon, New Hampshire |