| abstract |
Polymers of structure:n in which X is a cross-linking unit, X 1 is a comonomer unit, R 1 is hydrogen or C 1-4 alkyl and R 1 and R 2 are the same or different and are each C 1-2 alkyl or aralkyl, or R 1 to R 3 together form a ring, compositions containing them and their use in therapy for the lowering of serum cholesterol levels. |