Sentence:  Dr. Wilson C. Grant , of the Veterans ' Administration Hospital , Coral Gables , Florida , and the University of Miami School of Medicine , set out to discover if avocados , because of their high content of unsaturated fatty acids , would reduce the cholesterol of the blood in <WSD>selected</WSD> patients . 
Meaning of the word marked with <WSD> tags:  pick out, select, or choose from a number of alternatives