Tabla maestro Zakir Hussain has been admitted to the ICU of a San Francisco hospital after experiencing heart-related problems, his friend and flautist Rakesh Chaurasia said on Sunday. The 73-year-old US-based musician had been having blood pressure issues, added a source close to Zakir Hussain. "He has been admitted to a hospital in San Francisco for a heart related problem for the last week," he said.