TY - JOUR SN - 1561-0594 T1 - Important historical materials in modern medicine: A description of medical journals before 1949 AU - Zheng Jinsheng Y1 - 2000/12/01 PY - 2000 DA - 2000/12/01 T2 - Disquisitions on the Past & Present JF - Disquisitions on the Past & Present JO - Disquisitions on the Past & Present JA - Disquisitions on the Past & Present VL - 5 SP - 123 EP - 129 Y2 - 2000/12/01 ER -