An evaluation of the levels of vitamin D and bone turnover markers after the summer and winter periods in Polish professional soccer players - Kopec, A.; Solarz, K.; Majda, F.; Slowinska-Lisowska, M.; Medras, M. (Journal of Human Kinetics, 2013)
Keywords: soccer; male; high performance sport; elite sport; bone; vitamin; metabolism; training; load; preparation period; competition period; Germany; sport games; biological and medical sciences