Fig. 4
From: Genetics of the human Y chromosome and its association with male infertility
World map depicting the prevalence of Yq microdeletions in infertile males in different countries. The prevalence of Yq microdeletions in different countries of the world was estimated from published data of 40,127 Y chromosomes from infertile men. (oligozoospermic or azoospermic men). Only those articles published in English were considered and total number of infertile men studied and those having deletions were recorded along with the country. For each country data from different studies were pooled and the average estimated