FGF-23 ELISA test kits for use in humans and mouse/rat samples along with test kits for several forms of PTH, Osteocalcin, Calcitonin and related peptides are developed and manufactured by Immutopics. The company specializes in innovative assays for assessing calcium and phosphate regulation. Since 1989, it has been a leading source of immunoassay kits for pre-clinical studies of bone and mineral disorders in human, rat, mouse and other mammalian models.