“…Several studies also demonstrated that the incidence of laryngeal and hypopharyngeal cancer, acute myeloid leukemia, ovarian, pancreatic, breast, vulvar and gastric cancer was higher in individuals with A blood group (Henderson et al, 1993;Su et al, 2001;Rolfe et al, 2002;Vadivelu et al, 2004;El Hajj et al, 2007;Edgren et al, 2010;Greer et al, 2010). There are also various studies indicating that the incidence of esophageal squamous cell carcinoma, gastric cancer, acute lymphoblastic leukemia and malignant melanoma was higher in individuals with 0 blood group, while the incidence of endometrial cancer and advanced esophageal cancer was higher in individuals with AB blood group and the incidence of pancreatic cancer, Hodgkin's lymphoma and cardial cancer was higher in individuals with B blood group (Karakousis 1986;Su et al, 2001;Alavi et al, 2006;El Hajj et al, 2007;Vincenzo et al, 2011). So far, no relationship has been observed between the ABO blood groups in patients with brain cancer, cervical cancer, salivary gland cancer, testicular cancer and skin cancer, and the blood subtypes in healthy individuals (Mittal, 1970;Jordon et al, 1989;Pinkston and Cole, 1996;Mehrazin, 2006).…”