A DOCTOR struck off the register for three years after failing to keep a proper record of dangerous drugs yesterday won her appeal against the Medical Council decision. Ng Mei-sin, 51, will know her new sentence this morning when the Court of Appeal gives the reasons for its decision. The Medical Council last August found her guilty of professional misconduct. Her counsel, Michael Thomas QC, argued yesterday that the sentence was excessive as the only similar case gazetted in the past five years resulted in a three-month suspended sentence. He said the offence involved clerical errors resulting from ignorance of the stringent requirements for keeping a register of such drugs. He urged the sentence be replaced by a warning letter or reprimand. The court heard Ng was banned for three years from holding dangerous drugs. Mr Thomas said she could not, therefore, commit another offence.