Your question is very broad and unspecific.

You might want to look at:

http://www.journalofnursingstudies.com/article/S0020-7489(12)00459-2/fulltext

as a specific case and, from a general perspective, at:

https://books.google.at/books?id=sU8XBAAAQBAJ&dq=schmidt++meta-analysis&lr=&source=gbs_navlinks_s

Technically, you could fall under content analysis-like study. As there are many available software applications, it might worthwhile to seek out the appropriate case studies through the methods that are used. Try NVIVO and Leximancer.

Thanks Robert

Hi. The attached literature may assist you in aligning your study. Regards

Article Polymyositis/dermatomyositis and Malignancy Risk: A Metaanalysis Study

Chapter Responsible Business in Practice: Case Studies (Case Studies...

Article The order and priority of research and design method applica...

Thanks Malini but can't see the attachment