{Reference Type}: Case Reports {Title}: A Case of Four Synchronous Cutaneous Melanomas: Melanocortin 1 Receptor Polymorphisms and Excessive Sun Exposure. {Author}: Gasparini G;Ciccarese G;Cozzani E;Bruno W;Cabiddu F;Cioni M;Paudice M;Parodi A; {Journal}: Acta Derm Venereol {Volume}: 100 {Issue}: 1 {Year}: Jan 2020 7 {Factor}: 3.875 {DOI}: 10.2340/00015555-3371 {Abstract}: