Table 3.

Detailed research criteria (from Table S3 in[32])

All study designs:	Ethnographic studies:	Social network studies:
Appropriate research question	Description of study setting and context	Network boundaries clearly defined
Details of study design given	Description of study methods	Level of analysis defined
Description of sources for data collection	Adequate number of participants	Response rates given for whole network surveys
Survey techniques described	Adequate observation period	Clear definition of tie relationships, direction and strength
Description of analysis	Means of identifying brokers clearly defined	Appropriate means for identifying brokers
Data presentation		Description of analysis
Discussion of results
Study conclusions
Clear definition of tie relationships, direction and strength
Appropriate means for identifying brokers
Description of analysis