1 Department of Internal Medicine, Legacy Good Samaritan Medical Center, Portland, OR.
2 Department of Pulmonary Medicine, Legacy Good Samaritan Medical Center, Portland, OR; Department of Critical Care Medicine, Legacy Good Samaritan Medical Center, Portland, OR.
3 Department of Pulmonary Medicine, Legacy Good Samaritan Medical Center, Portland, OR. Electronic address: dhosmer@lhs.org.