In the group A , E@ level -LSB- ( @ + / - @ ) pg/mL vs ( @ + / - @ ) pg/mL , P < @ -RSB- and PGF@alpha level -LSB- ( @ + / - @ ) pg/mL vs ( @ + / - @ ) pg/mL , P < @ -RSB- were decreased and P level was increased -LSB- ( @ + / - @ ) ng/mL vs ( @ + / - @ ) pg/mL , P < @ -RSB- .