[Daily fluctuation in serum zinc level].
D000293:Adolescent; D002648:Child; D002940:Circadian Rhythm; D006801:Humans; D007501:Iron / Q000097:blood; D008832:Microchemistry; D013223:Statistics as Topic; D015032:Zinc / Q000097:blood*
D007501:Iron; D015032:Zinc
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