I am currently preparing a manuscript which lies in the biomedical field.
My study has five groups, and their identification is a bit tedious to describe in a full term (something like "'abcd' medicine + 10mg of 'efgh' medicine group").
Therefore, In the results section, I want to maximize word economy by not directly lettering out the specifics of the group, but just referring it to Group, such as A, B, C, D, and E. I am planning to propose a table that clearly explains the initial letters (A, B, C, D, E) of the group and its specific descriptions in the materials and methods section.
However, upon my research, many articles just endured the inefficiency of fully describing the group whenever it has to be mentioned. Is this some kind of a rule that has to be kept when writing a manuscript?