Association of ACTN3 R577X but not ACE I/D gene variants with elite rugby union player status and playing position

Shane M. Heffernan, Liam P. Kilduff, R.M. Erskine, Stephen H. Day, J.S. McPhee, G.E. McMahon, G.K. Stebbings, J.P. Neale, S.J. Lockey, W.J. Ribbans, C.J. Cook, B. Vance, S.M. Raleigh, C. Roberts, M.A. Bennett, Guan Wang, Malcolm Collins, Yannis Pitsiladis, A.G. Williams