Evaluation of a vitamin D screening and treatment protocol using a seasonal calculator in athletes - Hollabaugh, W. L.; Meirick, P. J.; Matarazzo, C. P.; Burston, A. M.; Camery, M. E.; Ferrill-Moseley, K. A.; Bley, J. A.; Pennings, J. S.; Fitch, R. W.; Tanner, S. B.; Karpinos, A. R. (Current Sports Medicine Reports, 2022)