Zhang Guoqing, Associate Chief Physician, Doctor of Clinical Medicine With over 20 years of clinical experience in pediatrics, Dr. Zhang studied at Wuhan Tongji Medical University, Shanghai Second Medical University, and Fudan University School of Medicine, where he obtained his master's and doctoral degrees. He also worked and studied at several children's hospitals in Shanghai. He possesses extensive clinical experience in pediatrics and is proficient in the diagnosis and treatment of common and critical neonatal diseases. Currently, he serves as a member of the Neonatology Committee of the Shanghai Society for Biomedical Engineering and a member of the Resuscitation Committee of the Neonatology Branch of the Chinese Medical Doctor Association. Overseas training: He has undertaken short-term study visits at the University of Ottawa Faculty of Medicine in Canada and the David Geffen School of Medicine at the University of California, Los Angeles. Main research interests: Specializes in the diagnosis and treatment of common infant diseases, with a focus on the growth and neurodevelopmental follow-up of preterm infants.