Fig. 1From: Human resources for health interventions in high- and middle-income countries: findings of an evidence reviewFlowchart of search methodology and selection. (Although some studies raise concern regarding the recall of Google Scholar, due to the limitation of not being able to view beyond 1000 search results [10], this was not of concern as search results were less than 1000. Google allows showing the “most relevant results,” which is based on an algorithm that omits duplicated and very similar results as well as accounting for history using the Google account)Back to article page