???? ????????? : ????? ?????? ????????? ???? ??? ? ??????? ???????? ? ????? ??? ??????? ????????? ? ???? ?? ????? ????? ?? ?????? ???????. ????? ???? ????????? - ??? ???????? - ????? ???? ????????? Diketones are existing in cigarettes also, at 100-750 situations the extent of what’s