@misc{indiciaed8c6b10df0db, title = {[Multiple sclerosis and its geographic distribution].}, author = {N I GRASHCHENKOV and S A MEL 'NIKOV and A B ROGOVER and A M VEIN and B M GEKHT}, year = {1961}, url = {https://pubmed.ncbi.nlm.nih.gov/13901193/}, note = {Source identifier: 13901193} }