Blue-black hyperpigmented patches on the cheeks. - 2022 English Standard No.: 10.1016/j.jdcr.2021.10.037 [doi] PMC8688939 [pmc] S2352-5126(21)00850-X [pii] Subjects--Topical Terms: IN PROCESS -- NOT YET INDEXED Subjects--Geographic Terms: MedStar Washington Hospital Center Index Terms--Occupation: Dermatology Index Terms--Function: Journal Article