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                        Wistar RatDeveloped by the Wistar Institute in the United States in 1907. In 2019, SpePharm (Beijing) Biotechnology Co., Ltd. introduced breeding from the National Rodent Laboratory Animal Seed Center.More - 
                    
                        
                        ICR miceIn 1926, the Rockfeller Institute of the United States introduced albino mouse from Switzerland to breed Swiss mouse; in 1948, it was introduced by the Philadelphia Cancer Institute and bred Ha/ICR. In 1973, it was introduced into China and in 2011, SPF (Beijing) Biotechnology Co., Ltd. introduced it from the National Rodent Experimental Animal Seed Center and bred it.More