The serum levels of GAS in T group on PBD 3 , 7 , 14 [ ( 92 + / - 26 ) , ( 95 + / - 16 ) , ( 98 + / - 18 ) ng/L ] were significantly higher than those in C group [ ( 80 + / - 15 ) , ( 75 + / - 17 ) , ( 79 + / - 13 ) ng/L , with t value respectively 15.352 , 22.951 , 19.263 , P values all below 0.01 ] .
