RT Journal Article SR Electronic T1 Chondrodermatitis nodularis helicis JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 277 OP 278 DO 10.3949/ccjm.90a.22078 VO 90 IS 5 A1 Maggie So A1 Randall S. Edson YR 2023 UL http://www.ccjm.org/content/90/5/277.abstract AB