{Reference Type}: Journal Article {Title}: Features that define clinical severity of ulcerative pyoderma gangrenosum: a Delphi consensus study of experts and patients on behalf of the US Medical Dermatology Society. {Author}: Pimentel MA;Li MM;Noe MH;Latour E;Seminario-Vidal L;Greiling T;Shinkai K;Hamilton A;Alavi A;Bolognia JL;Cowen EW;Dominguez A;Fernandez AP;Fivenson D;Huang WW;Madigan LM;Mauskar M;Means AD;Nelson CA;Patsatsi A;Pugliese D;Rojek NW;Rosenbach M;Smith GP;Swerlick RA;Heffernan MP;Mostaghimi A;Ortega-Loayza AG; {Journal}: Br J Dermatol {Volume}: 188 {Issue}: 4 {Year}: 03 2023 30 {Factor}: 11.113 {DOI}: 10.1093/bjd/ljac137