Loss-of-function mutations in PTPN11 cause metachondromatosis, but not Ollier disease or Maffucci syndrome.
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PLoS Genet. 2011 Apr;7(4):e1002050. doi: 10.1371/journal.pgen.1002050. Epub 2011 Apr 14.
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PMID: 21533187
Free PMC article.