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Match the items they are most directly associated with. The choices may be used more than once.
a. Barrett™s
b. Cancer oral cavity
c. Gastric Ca
d. Colon Ca
18. Esophageal Ca
19. leukoplakia
20. Blood group A
21. Pernicious anemia

18-A
19-B
20-C
21-C

18,a
19b
20,c
21 c

so you are 100 % sure ?

18....a

19....b

21...c

18 a
19 B
20 c
21 c