WHO Country Filters for LMIC Countries

Country filters have been developed for PubMed: https://pubmed.ncbi.nlm.nih.gov 

Countries were limited to low‐ and middle‐income countries (LMIC) based on the World Bank (WB) yearly updated Country Classification, including Low-Income, Lower-Middle-Income and Upper-Middle-Income Economies, please see the WB current and historical classification for the fiscal year 1989 onwards:

https://datahelpdesk.worldbank.org/knowledgebase/articles/906519-world-bank-country-and-lending-groups

These filters were developed to be used primarily when searching for studies to include in systematic reviews for a specific country or a combination of countries.