How would you classify these types of research publications This question relates to medical publications but it is surely relevant to other fields. Consider the following publications:


The first is a textbook type of paper, its goal is to describe the best practice in a field and it contains minimal, if any, original research. There will be a vast breadth of citations from different topics.
The second is a medical study by a single team where they perform a repeatable process to learn more about subjects. They will mention N=500 or however many subjects they have. 
The third is a medical study that reviews several studies of type #2 above. The goal is to aggregate multiple single case studies (N=1) and other studies with N>1. The goal of this paper is to increase reliability by having a higher N, or it may be to repurpose the data into different categories. E.g. it may take five studies of N=100 and then separate them into N=250 females and N=250 males.


Are there a commonly-used terms that describes these three situations?
Category #1 I would call a literature review (or survey.)

Category #3 is a meta-review (aka meta-analysis).

The papers in category #2 tend to be described by their methodology (case study, experiment, etc).