1. Department of Internal Medicine, Maternity and Child Care, Weihai, Shandong, China (mainland)
2. Department of Imaging, Tumor Branch of Municipal Hospital, Weihai, Shandong, China (mainland)
3. Department of Bone Cancer, Yantaishan Hospital, Yantai, Shandong, China (mainland)
4. Medical Sciences of Shandong, Jinan, Shandong, China (mainland)