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Clinical phenotypes. A–C, MS12, age 17 years, showing mild nasal-root hypolasia and moderate midfacial hypoplasia and slender digits. D–F, MS16, age 14 years. Note anteverted nares and nasal-root hyoplasia and joint laxity. G–I, III-7, MS25, age 29 years. Note well-developed nasal bridge and root, moderate midfacial hypoplasia, and slender digits.
