RECTOVAGINAL FISTULA
\ɹˈɛktəvˌad͡ʒɪnə͡l fˈɪstjʊlə], \ɹˈɛktəvˌadʒɪnəl fˈɪstjʊlə], \ɹ_ˈɛ_k_t_ə_v_ˌa_dʒ_ɪ_n_əl f_ˈɪ_s_t_j_ʊ_l_ə]\
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Quinones
- Hydrocarbon rings which contain two moieties position. They can be substituted in any position except at the ketone groups.