Director of Pediatrics, Chief Physician, Professor, and Doctoral Supervisor. Specializes in neonatal diseases, follow-up of high-risk newborns and premature infants, digestive system diseases, infant nutrition, and the diagnosis and treatment of complex diseases. Her main research areas include neonatal enteral and parenteral nutrition support, pediatric gastrointestinal motility disorders, functional gastrointestinal diseases, cow's milk protein allergy-related digestive system diseases, diarrhea, chronic constipation, cyclic vomiting syndrome, and inflammatory bowel disease. Proficient in neonatal rescue skills such as neonatal tracheal intubation and ventilator control. Professor Zhenghong Li is the Director of Pediatrics at Peking Union Medical College Hospital and a Doctoral Supervisor. She has won the Outstanding Physician Award at Peking Union Medical College Hospital multiple times. She has led and participated in numerous research projects, including the Capital Medical Science Development Fund joint research project, Beijing Health Science and Technology Achievements and Appropriate Technology Promotion Project, Health Industry Scientific Research Special Project, National Science and Technology Support Program, and Peking Union Medical College Hospital Central High-Level Hospital Clinical Research Special Project. She has spoken at numerous domestic and international conferences, won awards for multiple papers, published over 70 articles in Chinese and English, and co-authored over 10 books. She has also led the release of 2 standards and holds 5 utility model patents and 1 invention patent.