BILLIONAIRE, M.D. (3) by Olivia Gates: The accident that nearly killed Cybele Wilkerson also robbed her of her memories -- of her life, the man she married and the man who loved her. Lost, pregnant and shattered, Cybele leans on the doctor who not only brought her back from the brink but who has loved her for months. Dr. Rodrigo Valderrama, her late husband's stepbrother, can't bring himself to leave her foundering as he again falls under her spell. Though a warmly romantic tale in theory, the story bogs down in too much medical dialogue and inconsistencies in the main characters' actions.