Most or all of the abstract should be written in the present tense.
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The hallmark of a good introduction include()
A. Brevity
B. Verbose
Clarity
Direction
Some of the research results usually should be included in Materials and Methods section.
Attempts to draw a conclusion should not be covered in the results section.
Key points in writing the discussion include().
A. Highlight your study
B. Acknowledge limitations
C. Draw the conclusion
D. Avoid repeating and exaggerating