TY - RPRT TI - Trauma as an etiologic and aggravating factor in multiple sclerosis. AU - C R Bamford AU - W A Sibley AU - C Thies AU - J F Laguna AU - M S Smith AU - K Clark PY - 1981 DO - 10.1212/wnl.31.10.1229 UR - https://pubmed.ncbi.nlm.nih.gov/7202132/ ID - 7202132 ER -