The retrieval platform mainly includes the following databases:

1, ProQuest Research Library (PRL formerly ARL for short)

PRL is a comprehensive academic research database developed by ProQuest. This database is one of the databases on the ProQuest platform, covering business economy, education, history, communication, law, military, culture, science, medicine, art, psychology, religion and theology, sociology and other fields. It contains more than 4,000 comprehensive periodicals and newspapers, most of which have full-text articles in recent years.

2. ProQuest (Health and Medicine)

Basic medicine, clinical medicine, health and other important professional journals 1389, of which 1 14 1 is a full-text journal with complete text or images.

3. Dissertation Abstracts Database

ProQuest dissertations & dissertations is a database of doctoral and master's dissertations published by ProQuest Company in the United States. This database is a world-famous dissertation database, and it is also the largest and most widely used dissertation database in the world. It contains abstracts and indexes of doctoral and master's dissertations in the fields of literature, science, engineering, agriculture and medicine from more than 2,000 universities in Europe and America, covering many fields such as science and engineering, humanities and social sciences, and is a very important reference information source in academic research. About 45,000 doctoral dissertations and 0.2 million master dissertations are added every year. Among them, the abstract of doctoral thesis is about 350 words, and the abstract of master thesis is about 150 words. You can see the first 24 pages of the thesis since 1997.