TY - RPRT TI - [Poorly differentiated ("dedifferentiated") chondrosarcoma]. AU - N N Petrovichev AU - L A Eremina AU - L A Khmelev AU - N V Kasumov PY - 1984 UR - https://pubmed.ncbi.nlm.nih.gov/6695530/ ID - 6695530 ER -