Sentence:  Rather , it is typical of the thousands of quacks who <WSD>use</WSD> phony therapeutic devices to fatten themselves on the miseries of hundreds of thousands of Americans by robbing them of millions of dollars and luring them away from legitimate , ethical medical treatment of serious diseases . 
Meaning of the word marked with <WSD> tags:  put into service; make work or employ for a particular purpose or for its inherent or natural purpose