Carpenter Carpenter TO TO Insogna Insogna KL KL Zhang Zhang JH JH Ellis Ellis B B Nieman Nieman S S Simpson Simpson C C Circulating levels of soluble klotho and FGF23 in X-linked hypophosphatemia: circadian variance, effects of treatment, and relationship to parathyroid status Circulating levels of soluble klotho and FGF23 in X-linked hypophosphatemia: circadian variance, effects of treatment, and relationship to parathyroid status J Clin Endocrinol Metab J Clin Endocrinol Metab 2010 2010 95 95 E352 E352 7 7 10.1210/jc.2010-0589 10.1210/jc.2010-0589 20685863 20685863. The gene discussed is KL; the disease is X-linked hypophosphatemia.