SCI is the abbreviation of American scientific citation index, such as Cell Journal.
The core of science and technology is the periodical selected by China Institute of Science and Technology Information (ISTIC), such as Nursing Research.
Chinese Core (PKU, Peking University) is an anthology of Chinese core journals in Peking University, such as China Journal of Practical Surgery.
Selection criteria from high to low: SCI, CSCD, Peking University, STIC.
Knocked hard for a long time, hoping to adopt it.