TY  - RPRT
TI  - Multiple sclerosis in Vestfold, Norway.
AU  - S I Oftedal
PY  - 1966
DO  - 10.1111/j.1600-0404.1966.tb01998.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5909415/
ID  - 5909415
ER  -