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Journal Article OBSERVATIONS ON ESSENTIAL (HEREDOFAMILIAL) TREMOR Get access MACDONALD CRITCHLEY MACDONALD CRITCHLEY Search for other works by this author on: Oxford Academic PubMed Google Scholar Brain, Volume 72, Issue 2, June 1949, Pages 113–139, https://doi.org/10.1093/brain/72.2.113 Published: 01 June 1949
Macdonald Critchley (1949) studied this question.