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Analysis of risk control factors of medical cold chain logistics based on ISM model

The logistics of pharmaceutical products, especially for the pharmaceutical cold collections that need low-temperature storage is important for medical security. This paper analyzes the risk elements in the cold chain system of drugs by using ISM model (Interpretative structure modeling), establishes the adjacency matrix by analyzing the relationship among the elements of the cold chain system of medicines, calculates the reachability matrix by using MATLAB, finally constructs a multi-level ladder interpretation structure model, and puts forward the construction of reducing or avoiding the risk for the key influencing factors.