{{Cite journal| doi = 10.7241/ourd.20192.24| issn = 2081-9390| volume = 10| issue = 2| pages = 198–199| last = Hamzawi| first = Nabeel K Al| title = Lichen planus arising through the Koebner phenomenon in areas of Hijama| journal = Our Dermatology Online| date = 2019-04-09}}