| http://www.w3.org/ns/prov#value | - Bloomberg News WASHINGTON -- The U.S. Department of Veterans Affairs has almost tripled spending on erectile dysfunction drugs in the past six years as war-related psychological disorders contribute to sexual difficulties.The VA spent $71.7 million on drugs including Pfizer's Viagra and Bayer's Levitra in the year ended Sept. 30, up from about $27.1 million in fiscal 2006.The surge in drug spendin
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