Zhangzhou High-tech Zone, the hometown of Zhang Mingjun. The address of Chen Rongshan, an old doctor of traditional Chinese medicine in Zhangzhou, is in Zhang Mingjun's hometown in Zhangzhou High-tech Zone. Chen Rongshan, a native of Lantian Village, Zhangzhou, Fujian, 1957. He is a village doctor, learning from his ancestors. He has been practicing medicine for 40 years and has accumulated rich experience. He is good at treating rheumatoid arthritis, cervical hyperplasia, ankylosing spondylitis, lumbar disc herniation, burns and scalds, and has unique research on intestinal cancer, gastric cancer, esophageal cancer and tumors. The patients treated are all over Zhangzhou and all over the country.