Parameters UK KSA Results found 82 55 Sum of the Times Cited 2153 438 Sum of Times Cited without self-citations 2126 383 Citing Articles 2007 324 Citing Articles without self-citations 1990 301 Average Citations per Item 26.26 7.96 h-index 22 10

Table 3: Comparative citation analysis of blood donor study research outputs of the United Kingdom and Saudi Arabia between 1990 and 2012.