What advanced were made in the storage of blood?

Advances in blood storage include: - in 1915, American doctor Richard Lewisohn discovered adding sodium citrate to blood allowed for transfusion to be indirect - also in 1915 Richard Weil discovered blood with sodium citrate could be refrigerated and stored for up to two days - in 1916 Francis Rous and James Turner found adding a citrate glucose solution to blood allowed it to be stored for up to four weeks