Used one statement for COVALENT, AD2XS and VDW
Used one statement for COVALENT, AD2XS and VDW

quinonez/istar,quinonez/istar,HongjianLi/istar,quinonez/istar,quinonez/istar,HongjianLi/istar,HongjianLi/istar,HongjianLi/istar