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Nangaku receives research support and honoraria from Kyowa Kirin Co., Ltd. Nobuaki Ito receives research funding from Alexion AstraZeneca Rare Disease. The Division of Therapeutic Development for Intractable Bone Diseases, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, is an endowed department supported by Kyowa Kirin Co., Ltd. All other authors have nothing to disclose.","order":1,"name":"Ethics","label":"Conflict of interest","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"114"}}