Cancer, which is the second most common cause of death in many developed countries and the third one in some developing countries, is an important global public health concern (Bener et al., 2008; Herszenyi and Tulassay, 2010). According to GLOBOCAN estimates, cancer led to about 14.1 million of new cases and about 8.2 million deaths in 2012. Stomach cancer, with roughly 950,000 new cases and 7...