Los Angeles County supervisors unanimously approved a plan to ask the University of California's regents to commit to partnering with the county to reopen Martin Luther King Jr. hospital by 2012. The vote authorizes the county's chief executive, William T Fujioka, to move beyond closed-door negotiations and take the county's proposal to the UC Board of Regents meeting next month. The facility, formerly known as King-Drew Medical Center and King-Harbor Hospital, closed to inpatient services two years ago and since has operated as an outpatient clinic.