title: Chondrodermatitis nodularis chronica helicis.
authors.affiliation: Department of Dermatology, Katihar Medical College and Hospital, Katihar, Bihar, India.
authors.forename: Piyush
authors.initials: P
authors.lastname: Kumar
authors.affiliation: Department of Dermatology, Katihar Medical College and Hospital, Katihar, Bihar, India.
authors.forename: Rizwana
authors.initials: R
authors.lastname: Barkat