The Republic of the Niger

About the search

Responsible

LMIC Country Filters

Description

These filters were developed in the World Health Organization Library to be used primarily when searching for systematic reviews for a specific country or a combination of countries.

Main subjects

Regional

Search result

"VHL Regional Portal"

Search strategy

iAHx search strategy

N/A

Search strategy (Pubmed)

Observation

The filters have been built using the following format:

- Country names in the [TW] field, truncated to search for plural, adjective & possessive forms

- Country name (truncated) in [TT] field for translated titles

- Country name (truncated) in [AD] field for author addresses

- Older/newer versions of country names were searched and included

- Regions and provincial terms were added in [TW] fields

- At least 20 city names were included in [TW] fields

- Previously or currently indexed NCBI journals were added using [Journal] or [IS].

The terms were checked for double meanings. Terms that overlapped with common author names or common acronyms were removed. If the terms were overlapping with that of another region, it was considered.

None of these filters have been validated.

Search strategy

"Niger"[Mesh] OR "Niger"[TW] OR "Niger"[TT] OR "Niger"[AD] OR Nigerien*[TW] NOT ("A. Niger" OR "S. niger" OR "H. niger" OR "Sciurus niger" OR "Aspergillus niger" OR "Chartocerus niger" OR "Cephalophus niger" OR "Lasius niger" OR nigeriensis OR "niger State" OR "niger delta" OR "niger seed") OR Agadez[TW] OR Diffa[TW] OR Dosso[TW] OR Maradi[TW] OR Niamey[TW] OR Tahoua[TW] OR Tillabéri[TW] OR Abala[TW] OR Abalak[TW] OR Agadez[TW] OR Aguié[TW] OR Arlit[TW] OR Ayourou[TW] OR Balléyara[TW] OR "Birni Ngaouré"[TW] OR "Birni Nkonni"[TW] OR Dakoro[TW] OR Dogondoutchi[TW] OR Filingué[TW] OR Gazaoua[TW] OR Gouré[TW]