INDOOR AIR POLLUTION
\ˈɪndɔːɹ ˈe͡ə pəlˈuːʃən], \ˈɪndɔːɹ ˈeə pəlˈuːʃən], \ˈɪ_n_d_ɔː_ɹ ˈeə p_ə_l_ˈuː_ʃ_ə_n]\
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Surgical Procedures, Endoscopic, Digestive System
- Endoscopic examination, therapy or surgery of the digestive tract.