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The Japanese Society for Pediatric Endocrinology. Hypochondroplasia. Information Center for Specific Pediatric Chronic Diseases;  2014 [updated 2014 Oct 6; cited 2026 Mar 18]. (In Japanese). Available from: https:\/\/www.shouman.jp\/disease\/instructions\/15_02_003\/."},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Spranger, JW, Brill, PW, Hall, C, Nishimura, G, Superti-Furga, A, Unger, S. Bone dysplasias: an atlas of genetic disorders of skeletal development. 4th ed. Oxford: Oxford University Press;  2018.","DOI":"10.1093\/med\/9780190626655.001.0001"},{"key":"3","unstructured":"3. Bober, MB, Bellus, GA, Cheung, MS, Jain, M, Nikkel, SM, Tiller, GE. Hypochondroplasia. In: Adam MP, Bick S, Mirzaa GM, Pagon RA, Wallace SE, Amemiya A, editors. GeneReviews\u00ae [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2026 [updated 2025 Sep 25; cited 2026 Mar 18]. 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Pathways to facilitate early recognition and diagnosis of hypochondroplasia. Adv Ther 2026;43: 2018\u201333.","DOI":"10.1007\/s12325-026-03526-2"},{"key":"8","doi-asserted-by":"crossref","unstructured":"8. Arenas, MA, Del Pino, M, Fano, V. FGFR3-related hypochondroplasia: longitudinal growth in 57 children with the p.Asn540Lys mutation. J Pediatr Endocrinol Metab 2018;31: 1279\u201384.","DOI":"10.1515\/jpem-2018-0046"},{"key":"9","unstructured":"9. Kozlowski, K. Hypochondroplasia. Progress in Pediatric Radiology Intrinsic Diseases of Bones. Basel: Karger;  1973. p. 238\u201349."},{"key":"10","doi-asserted-by":"publisher","unstructured":"10. Hall, BD, Spranger, J. Hypochondroplasia: clinical and radiological aspects in 39 cases. Radiology 1979;133: 95\u2013100.","DOI":"10.1148\/133.1.95"},{"key":"11","doi-asserted-by":"crossref","unstructured":"11. Jones, SM, Robinson, LK, Sperrazza, R. Prenatal diagnosis of skeletal dysplasia identified postnatally as hypochondroplasia. 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