<style face="normal" font="default" size="100%">Initial metformin or sulphonylurea exposure and cancer occurrence among patients with type 2 diabetes mellitus</style>

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31<style face="normal" font="default" size="100%">Initial metformin or sulphonylurea exposure and cancer occurrence among patients with type 2 diabetes mellitus</style><style face="normal" font="default" size="100%">Initial metformin or sulphonylurea exposure and cancer occurrence among patients with type 2 diabetes mellitus</style>