أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
In addition to Mr. Khalid's answer, I would say that it is any critical point. info and data that is missing and it affects the credibility of the research !
Thank You
It's what makes your manuscript publishable. It's missing element in the existing research literature. It's the gap that you fill with your research approach