I am writing a 3-page letter. Space is limited, so I am trying to find out whether I can eliminate additional words.

I noticed in most academic paper, the introduction ends with explaining whats going to come in the methods, results and discussion.

Then sometimes at the beginning of the methods section, some authors (not all) state whats going to come in the methods section and then goes into more details.

At the end of the methods section or beginning of the results section, some papers go into what’s going to come in the results section and then goes into details.

Similarly, for the discussion section.

I understand from reading online, that’s it’s a good idea to give an idea of whats going come in the methods, results and discussion sections at the end of the introduction (http://abacus.bates.edu/~ganderso/biology/resources/writing/HTWsections.html#introduction).

However, is it customary to summarize each section (something like a mini-abstract) at the beginning of each section/end of the previous section?