Emerging frontiers in androgen receptor research for prostate Cancer: insights from the 2nd international androgen receptor Symposium by Israel, JS, Marcelin, L, Thomas, C, Szczyrbová, E, Fuessel, S, Puhr, M, Linxweiler, J, Yalala, S, Zwart, WT, Baniahmad, A, van Goubergen, J, Itkonen, HM, Sharp, A, O’Neill, E, Pretze, M, Miederer, M, Erb, HH