1, school/hospital official website;
2. Published abstracts: Pubmedid, Google Academic, Wanfang Analysis, ResearchGate, Mendeley, Scopus, Publons, ORCID;;
3. Full-text literature: GeenMedical, sci-hub, HowNet;
4. Student doctoral thesis: HowNet, Wanfang, and the target university library;
5. Funding: National Natural official website, Metz Medicine, LetPub, Science Network;
6. Tutor evaluation network: wall+charge;
7. Acquaintances/strangers: Use social resources and use your imagination;
8. Other public platforms: Baidu, Zhihu, Pubpeer, Xiaohongshu, Weibo, etc.
9. email: gmail+mailtrack? (need scientific internet access);
10, visit offline.