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Description
For randomised clinical trials, the Jadad scale (Jadad et al., 1996), as used to assign a quality score ranging from 0 to 5, based on randomisation, blinding, and withdrawal reporting

[DOI] [PubMed] [Google Scholar] 64.Diamond LE, Earle DC, Rosen RC, Willett MS, Molinoff PB

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The dose is 1000 mcg (1 mg)
Endocrinology & Metabolism, 140(12), 5616-5621
