TY  - RPRT
TI  - Problems in evaluating treatment in multiple sclerosis.
AU  - M NATHANSON
PY  - 1952
DO  - 10.1016/0002-9343(52)90240-4
UR  - https://pubmed.ncbi.nlm.nih.gov/14933435/
ID  - 14933435
ER  -