RT Journal Article SR Electronic T1 Langerhans cell histiocytosis in the frontal and zygomatic bones of an adolescent girl JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e246367 DO 10.1136/bcr-2021-246367 VO 14 IS 9 A1 Tokunori Kanazawa A1 Kosuke Karatsu A1 Takumi Kuramae A1 Masayuki Ishihara YR 2021 UL http://casereports.bmj.com/content/14/9/e246367.abstract AB