[1] Thomas Jefferson Univ Hosp, Dept Neurosurg, Philadelphia, PA 19107 USA
[2] Dartmouth Inst Hlth Policy & Clin Practice, One Med Ctr Dr, Lebanon, NH 03755 USA
[3] Dartmouth Hitchcock Med Ctr, Sect Neurosurg, Lebanon, NH 03766 USA
[4] Geisel Sch Med Dartmouth, Dept Biomed Data Sci, Hanover, NH USA
[5] Dartmouth Hitchcock Med Ctr, Dept Med, Lebanon, NH 03766 USA
[6] Dartmouth Hitchcock Med Ctr, Dept Dept Community & Family Med, Lebanon, NH 03766 USA
[7] Long Isl Neurosurg & Pain Specialists, West Islip, NY USA