The Board of Examiners for Nursing on Wednesday revoked the licenses of three nurses and disciplined six others. The board revoked the registered nurse (RN) license of Charlene Zikaras of Milford for continuing to practice as a nurse after being told to stop by the state. Zikaras, who worked at the Stamford Ambulatory Surgical Center, had her license placed on probation for four years in December 2018 for alcohol abuse and was required to submit urine screens. On April 22, Zikaras’ urine tested positive for alcohol and on May 3 she was told to refrain from working as a nurse. Zikaras went to work on May 8, the Department of Public Health (DPH) reported.