Fig. 4

Core institutions and countries in PCOS research. a X-axis represents the number of articles, whereas Y-axis represents the name of the organisation. b The nationality of corresponding authors of PCOS articles published in various countries. X-axis represents the number of articles, whereas Y-axis represents the nationality. c The number of cited PCOS articles in various countries. X-axis represents the number of articles, and Y-axis represents the country. d The average number of cited PCOS articles of each country. X-axis represents the number of articles, and Y-axis represents the country. e The cooperative relationship between countries. A darker blue colour indicates that more articles were published in the region. A thicker red line represents the higher number of articles’ authors that cooperated between the two regions