Dr. Marcela Lezama, left, and Dr. Pedro Romero, right, have been working for about four months with Dr. Keith Serxner, center, at Dr. Serxner's dental office in La Canada Flintridge. Dr. Serxner, who's been practicing for 30 years, will retire at the end of the year but Drs. Lezama and Romero will continue to run the children's dental office.
Raul Roa / Staff Photographer
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