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- household air pollution[remove]6
- pneumonia3
- ALRI1
- Air Pollution, Indoor1
- Guatemala1
- India1
- Rwanda1
- Streptococcus pneumoniae1
- Tibet1
- acute respiratory infection1
- black carbon1
- climate change1
- community-based1
- development1
- diarrhea1
- disease1
- environmental health1
- ethnography1
- indoor air quality1
- liquefied petroleum gas1