Assertion: lichen's form | /r/ObjectUse | used for the treatment of lichen
Facets:
value: until the 1950s
type: TEMPORAL
Source sentences:
text: Until the 1950s, various forms of radiotherapy were used for the treatment of lichen sclerosus,11 followed by the systemic application of bismuth.12 Surgical approaches including vulvectomy, cryosurgery, and carbon dioxide laser vaporization have also been advocated as treatment options.5,13-15