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Science 311, 10081012

DNA Repair

Type II turn of receptor-bound salmon calcitonin revealed by X-ray crystallography

Routine testing of vitamin B12 levels in metformin-treated patients should be considered. Because metformin often causes digestive tract upset, many patients are also put on a proton pump inhibitor (PPIs) such as esomeprazole ( Nexium ), lansoprazole ( Prevacid ) or omeprazole ( Prilosec )

Older individuals with greater baseline synaptic loss may show more pronounced responses to a given dose than younger individuals with intact synaptic density, but this reflects neurobiological substrate, not chronological age itself

C., & Mong, J