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Keyword
- Sudan[remove]5
- Africa1
- Avoidable Blindness1
- Cataract1
- Cataract Surgery1
- Cataract surgical barriers1
- Clustering1
- Design Effect1
- Diaspora1
- Migration1
- Prevalence1
- Probability Proportional to Estimated Size1
- Proportional Allocation1
- RAAB methodology1
- Sampling1
- Sampling Weights1
- Senegal1
- Stratification1
- Stratified Sampling1
- Trachoma1