TY  - RPRT
TI  - Mixed leucocyte reaction in multiple sclerosis.
AU  - B Källén
AU  - O Nilsson
PY  - 1971
DO  - 10.1038/newbio229091a0
UR  - https://pubmed.ncbi.nlm.nih.gov/5280345/
ID  - 5280345
ER  -