Tim N.T.N.ZiegenfussTim N.T.N., John M.J.M.BerardiJohn M.J.M., Lonnie M.L.M.LoweryLonnie M.L.M., Effects of prohormone supplementation in humans: a review, „Canadian Journal of Applied Physiology”, 27 (6), 2002, s. 628–646, DOI: 10.1139/h02-037, PMID: 12501001(ang.).
Tim N.T.N.ZiegenfussTim N.T.N., John M.J.M.BerardiJohn M.J.M., Lonnie M.L.M.LoweryLonnie M.L.M., Effects of prohormone supplementation in humans: a review, „Canadian Journal of Applied Physiology”, 27 (6), 2002, s. 628–646, DOI: 10.1139/h02-037, PMID: 12501001(ang.).