TY - RPRT TI - Recalcitrant pyoderma gangrenosum treated with systemic tacrolimus. AU - C C Lyon AU - B Kirby AU - C E Griffiths PY - 1999 DO - 10.1046/j.1365-2133.1999.02745.x UR - https://pubmed.ncbi.nlm.nih.gov/10233300/ ID - 10233300 ER -