RESULTS	A total of 32 subjects were enrolled ( 16 men [ mean ( SD ) age , 21.8 ( 2.7 ) years ( range , 18-26 years ) ; weight , 68.9 ( 8.3 ) kg ( range , 55.5-85 .0 kg ) ] ; 16 women [ age , 23.5 ( 4.5 ) years ( range , 20-38 years ) ; weight , 51.7 ( 3.5 ) kg ( range , 46.8-58 .0 kg ) ] ) .\