RESULTS	The mean PC ( 20 ) values before and after RA were 0.92 + / - 0.42 mg/mL and 1.16 + / - 0.51 mg/mL , respectively ( p = 0.71 ) , while the PC ( 20 ) values before and after SA were 1.47 + / - 0.83 mg/mL and 1.11 + / - 0.79 mg/mL , respectively ( p = 0.59 ) .\