Chief of Intensive Care Unit at the Centro Medico Docente La Trinidad Antonio Martinelli talks to the media at the hospital, where singer Gustavo Cerati is in, in Caracas May 24, 2010. Popular Argentine singer Cerati's condition has improved after undergoing surgery for a blood clot in his brain, but his condition is still delicate. The singer has began assisted muscle rehabilitation and if he continues to improve he may be transferred to Buenos Aires in about two weeks, according to the Medical Director of the Centro Medico Docente La Trinidad hospital. REUTERS/Carlos Garcia Rawlins (VENEZUELA - Tags: ENTERTAINMENT HEALTH)