A color legend indicates that darker blue shading corresponds to a higher “Number of Publications,” ranging from 1 (lightest blue) to 15 (darkest blue). Countries with publications are highlighted in shades of blue. The darkest shading shows the highest number of publications (around 15), which appears to be over India. Other countries with noticeable publication activity (lighter shades of blue) include the United States, Brazil, parts of Europe, and China or East Asia.“
Publication distribution by author country. Source: Authors’ own work