Figure 3From: Geography of Africa biomedical publications: An analysis of 1996–2005 PubMed papersTop 20 countries and their number of PubMed publications per 1,000,000 populations per year during the period between 1996 and 2005. Horizontal lines in the box represent the 1st, 2nd (the median), and 3rd quartile; whiskers (vertical lines) represent extension of values up and down.Back to article page