Erythrocyte zinc in differential diagnosis of hyperthyroidism in pregnancy: a preliminary report.Br Med J (Clin Res Ed) 1987; 294 doi: https://doi.org/10.1136/bmj.294.6579.1064 (Published 25 April 1987) Cite this as: Br Med J (Clin Res Ed) 1987;294:1064
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