Fig. 4From: Trends in antidiabetic drug use and expenditure in public hospitals in Northwest China, 2012-21: a case study of Gansu ProvinceTrends in the use and expenditure of bid-winning drugs under the centralised procurement policy. A trends in the use of bid-winning drugs; B trends in the expenditure of bid-winning drugs. DDDs, defined daily doses; DDC, defined daily costBack to article page