Baihong Regeneration has a cooperative relationship with the Fourth Military Medical University. Baihong Group successfully developed China's first tissue engineering product, tissue engineering skin (2007), relying on powerful technical platforms such as the R&D Center for Tissue Engineering of the Fourth Military Medical University and Xi 'an Institute of Tissue Engineering and Regenerative Medicine. Therefore, Baihong Regeneration has a close cooperative relationship with the Fourth Military Medical University. The Fourth Military Medical University is a military medical university in China, located in Xi City, Shaanxi Province. Founded in 1949, it is one of the important components of the military medical cause of China People's Liberation Army. The Fourth Military Medical University is committed to military medical education, scientific research and medical personnel training.