| http://www.w3.org/ns/prov#value | - In some embodiments, the retinoids include retinol, retinal, retinol esters, retinyl propionate, retinoic acid, retinyl palmitate or mixtures thereof.The dose regimen will depend on a number of factors which may readily be determined, such as severity and responsiveness of the condition to be treated, but will normally be one or more doses per day, with a course of treatment lasting from several d
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