1. Galen's System of Physiology and Medicine;Siegel,1986
2. Tatouage de la cornée;Wecker de;Union Med Can,1870
3. Permanent pigment injection of capillary hemangiomata;Brown;Plast Reconstr Surg,1946
4. The permanent camouflage of port-wine stains of the face by intradermal injection of insoluble pigments (tattooing);Conway;NY State Med J,1948
5. Tatoeage van wijnvlekken;Hage;Ned Tijdschr Geneeskd,1967