Sentence:  Sarah Gross , a dress shop proprietor , paid $ 1020 to a masseur , and Mr. A. , a laborer , paid $ 4200 to a chiropractor for <WSD>treatment</WSD> with two fake health machines - the `` radioclast '' and the `` diagnometer '' . 
Meaning of the word marked with <WSD> tags:  care provided to improve a situation (especially medical procedures or applications that are intended to relieve illness or injury)