RT Journal Article SR Electronic T1 Unexplained pathology is not always autoimmune JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 395 OP 396 DO 10.3949/ccjm.90b.07023 VO 90 IS 7 A1 Mandell, Brian F. YR 2023 UL http://www.ccjm.org/content/90/7/395.abstract AB