TY  - RPRT
TI  - Epidemiologic studies of multiple sclerosis.
AU  - C M Poser
AU  - P L Hibberd
PY  - 1987
DO  - 10.1001/archneur.1987.00520150007006
UR  - https://pubmed.ncbi.nlm.nih.gov/3827675/
ID  - 3827675
ER  -