The Associated Press reports Britney Spears was taken from her house by ambulance early Thursday, the second time the troubled pop tart was taken to a hospital this month. This time Spears is at UCLA Medical Center, where TMZ hears doctors are working with her buddy Sam Lutfi instead of her parents Lynne and Jamie. Why? Sources told TMZ that following Spears’ stay at Cedars-Sinai Medical Center earlier this month, she had her lawyers draft paperwork making it clear she did not want her parents involved in making medical decisions on her behalf. The hospital visit was much more calm that the previous one, with doctors allowing Britney to take a cigarette break.