ABSTRACT
Synonyms: AO1, AOII, giant cell chondrodysplasia, spondylohumerofemoral hypoplasia; includes boomerang dysplasia and Piepkorn dysplasia
Synonyms: AO1, AOII, giant cell chondrodysplasia, spondylohumerofemoral hypoplasia; includes boomerang dysplasia and Piepkorn dysplasia