著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) PORTER DE,Severity of disease and risk of malignant change in hereditary multiple exostoses : a genotype-phenotype study,J Bone Joint Surg Br,,,2004,86,,1041-1046,https://cir.nii.ac.jp/crid/1573105976004368384,https://doi.org/10.1302/0301-620x.86b7.14815