About: http://webisa.webdatacommons.org/99361763

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Before the 20th century, arsenic compounds, particularly arsenic trioxide, were used as treatments for syphilis, psoriasis, cancers, mental disorders, and as a cosmetic to lighten complexion.
http://www.w3.org/ns/prov#wasQuotedFrom	cdc.gov