Haiden A. Huskamp Michael E. Chernew David C. Grabowski J. Michael McWilliams Health Affairs October 1, 2018 2018 Gilstrap LG, Huskamp HA, Stevenson DG, Chernew ME, Grabowski DC, McWilliams JM https://www.healthaffairs.org/doi/abs/10.1377/hlthaff.2018.0491?journalCode=hlthaff