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To the Editor: The findings on the association of calcium supplementation and myocardial infarction (MI) risk by Li et al 1 are based on a small number of events since there were only 7 or 20 reported MIs depending on which dataset is referred to. Furthermore, the data only applied to original users, not current or cumulative …
Competing interests None.
Provenance and peer review Commissioned; internally peer reviewed.
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