Systematic Reviews for Nutrition and Public Health

Look at the section for Review - Authors

See also:

Methodological standards for the conduct of new Cochrane Intervention Reviews.

and

Guidelines for Systematic Reviews of Health Promotion and Public Health Interventions 

Mixed method reviews address complex problems that require analysis of contextual information. They include both quantitative and qualitative studies. They might address questions of human behavior and exepereince or why interventions work or not. [Young-I et al The Application of Knowledge Synthesis Methods in Apri-Food Public Health: Recent Advancements, Challenge and Opportunities. Preventive Veterinary Medicine 2014  113: 339-355.]