Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Pallister-Killian syndrome
Pallister-Killian syndrome: A condition with multiple
malformations at birth and mental retardation due to isochromosome 12p mosaicism (an
abnormal chromosome #12 in some cells).