text: <unk><unk><unk>  can occur in any age group, region, gender but there are some factors that predispose individuals of some groups to develop<unk><unk> .
option_0: Iron deficiency anemia epidemiology and demographics
option_1: Macrocytic anemia epidemiology and demographics
option_2: Alcoholism epidemiology and demographics
option_3: Lead poisoning epidemiology and demographics
option_4: Thrombophilia epidemiology and demographics
option_5: Peptic ulcer epidemiology and demographics
option_6: Aplastic anemia epidemiology and demographics
option_7: Ascariasis epidemiology and demographics