<http://webisa.webdatacommons.org/prov/317778169>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/253278735> .
<http://webisa.webdatacommons.org/253278735>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/253278735>	<http://www.w3.org/ns/prov#value>	"Retinal and it derivatives have also been found as useful in the treatment of such conditions as wrinkles, warts, psoriasis, eczema, dandruff, and the like (see EP-A2-0 391 033)." .
<http://webisa.webdatacommons.org/253278735>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .