TY - JOUR AU - Aguilera Guirao, Antonio PY - 2014 SN - 0269-9370 UR - http://hdl.handle.net/20.500.11940/6599 LA - eng TI - X4 tropic viruses are on the rise in recent HIV-1 seroconverters in Spain DO - 10.1097/QAD.0000000000000269 T2 - AIDS M2 - 1603 VL - 28 ER -