1. Department of Nursing, Qilu Children’s Hospital of Shandong University, Jinan 250022, Shandong Province, China
2. Operation Room, Shandong Provincial Hospital, Jinan 250021, Shandong Province, China
3. Department of Neonatology, Qilu Children’s Hospital of Shandong University, Jinan 250022, Shandong Province, China
4. Department of Calm Center, Qilu Children’s Hospital of Shandong University, Jinan 250022, Shandong Province, China
5. Department of Infectious, Qilu Children’s Hospital of Shandong University, Jinan 250022, Shandong Province, China
6. Endoscopy Room, The Fourth People’s Hospital of Jinan, The Third Affiliated Hospital of Shandong First Medical University, Jinan 250031, Shandong Province, China