1. Department of Gynecology, Jinan City People’s Hospital, Jinan 271199, Shandong, PR China
2. Department of Ophthalmology, Jinan City People’s Hospital, Jinan 271199, Shandong, PR China
3. Department of Quality Management, Jinan City People’s Hospital, Jinan 271199, Shandong, PR China
4. Department of Stomatology, Jinan City People’s Hospital, Jinan 271199, Shandong, PR China
5. Department of Science and Education, Jinan City people’s Hospital, Jinan 271199, Shandong, PR China