TY - RPRT TI - Fibrosarcomatous change in dermatofibrosarcoma protuberans. AU - U Wrotnowski AU - P H Cooper AU - B M Shmookler PY - 1988 DO - 10.1097/00000478-198804000-00005 UR - https://pubmed.ncbi.nlm.nih.gov/3354755/ ID - 3354755 ER -