<style face="normal" font="default" size="100%">The use of metformin and the incidence of lung cancer in patients with type 2 diabetes</style>

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31<style face="normal" font="default" size="100%">The use of metformin and the incidence of lung cancer in patients with type 2 diabetes</style><style face="normal" font="default" size="100%">The use of metformin and the incidence of lung cancer in patients with type 2 diabetes</style>