She switched doctors, and the new pediatrician referred her to a developmental pediatrician.

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Langsam, a former associate professor of biology at the University of North Carolina and Fischer, a retired developmental pediatrician, stir up vats of silky chocolate and handcraft it into mouth-watering truffles, barks, ganaches, and pastries in a state-of-the-art home kitchen.

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"I have been in this field for 25 years, and these last two years have been the most exciting in my career, " says Randi Hagerman, a developmental pediatrician at the MIND Institute at UC, Davis who is testing several of the drugs.

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"There is no easy way out of this, " says Dr. Tim Oberlander, a developmental pediatrician at BC Children's Hospital, in Vancouver, Canada, who has studied the effects of SSRIs on children exposed in the womb, but was not involved in the current study.

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The pediatrician and developmental psychologist Ronald Dahl at the University of California, Berkeley, has a good metaphor for the result: Today's adolescents develop an accelerator a long time before they can steer and brake.

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