The cardiovascular system at high altitude: A bibliometric and visualization analysis

Figure 2 Co-authorship of countries, institutions, authors, and journals. A: Co-authorship between countries with more than 9 publications; B: Co-authorship between institutions with more than 14 publications; C: Co-authorship between authors with more than 9 publications; D: Co-citation of cited references; E: Co-citation of cited journals; F: Co-citation of cited authors.