The pathogenesis of Plummer-Vinson syndrome (PVS) remains speculative, and the existence of the syndrome has been challenged. The prevalent iron deficiency theory remains controversial. Older reports have implicated iron deficiency in the pathogenesis of esophageal webs and dysphagia in predisposed individuals.
August 3-5, 2017 - Experience small-town America for free at the Vinland Fair! The fair is a yearly tradition in small-town Vinland, Kansas, this year from August 3-5.
Versum Materials will host its 2018 annual meeting of stockholders at 9:00 a.m. Mountain Standard Time on Tuesday, January 30, 2018, at its offices located at 8555 South River Parkway, Tempe, Arizona 85284. The record date for the 2018 annual meeting of stockholders is December 7, 2017. About Versum Materials