TY - RPRT TI - Modelling MRI enhancing lesion counts in multiple sclerosis using a negative binomial model: implications for clinical trials. AU - M P Sormani AU - P Bruzzi AU - D H Miller AU - C Gasperini AU - F Barkhof AU - M Filippi PY - 1999 DO - 10.1016/s0022-510x(99)00015-5 UR - https://pubmed.ncbi.nlm.nih.gov/10223415/ ID - 10223415 ER -