| Affiliation: | [1]Un, iversity of North Dakota School of Medicine and Health Sciences, Grand Forks, North Dakota, USA [2]Department of Family and Community Medicine, University of North Dakota School of Medicine and Health Sciences, Grand Porks, North Dakota, USA [3]Department of Internal Medicine, Division of Oneology/Hematology, University of Nebraska Medical Center, Omaha, Nebraska, USA [4]Department of Internal Medicine, VA-Nebraska-Western Iowa Healthcare System, Omaha, Nebraska, USA [5]Department of Internal Medicine, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota, USA5. |
