[Oral Mucosal Diffuse Large B-cell Lymphoma Caused by Long-term Oral Methotrexate:Report of One Case]

Yan-Quan Liu1,2, Xiao-Mei Hu3, Yue Yin4

  • 1First Clinical Medical College,First Affiliated Hospital of Gannan Medical University,Ganzhou,Jiangxi 341000,China.