RT @knwachter: #endo11 adults 19-50 yrs: 600 IU/day, adults 50-70 and 70+ yrs 600 and 800 IU/day respectively.
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RT @knwachter: #endo11 adults 19-50 yrs: 600 IU/day, adults 50-70 and 70+ yrs 600 and 800 IU/day respectively.