Table 1.

List of Publications.

Author	Year	Journal	Study Period	Country	Population Size
Faroug et al [48]	2009	Hip International	2004–2009	United Kingdom	2
Anagnostakos et al [49]	2010	Hip International	1999–2008	Germany	12
Lee et al [42]	2013	Acta Orthopaedica	2005–2010	South Korea	19
Ekpo et al [19]	2013	Clinical Orthopaedics and Related Research	2000–2011	USA	19
Lombardi et al [50]	2014	Bone and Joint	2011	USA	7
Fukui et al [51]	2015	Journal of Orthopaedics	2009–2014	Japan	5
El-Husseiny and Haddad [43]	2016	Clinical Orthopaedics and Related Research	2000–2010	United Kingdom	18
Ji et al [44]	2016	International Orthopaedics	2000–2013	China	31
Chen et al [52]	2017	International Orthopaedics	2004–2013	China	16