?? ???? ???? ??, ??? ?????? ??????? ????????????????: ?????????????????? ?????????? ?? ?? ????????????????????????????????? ??????? ???????? ???????. ??? ????????????? ???? ?? ???????? ???? ????????? ???????????? ?? ?? ?????? ???? ???? ?? ???????? ?? ?? ?? ??? ???? ????Acetildenafil as well as other artificial structural analogs of sildenafil t