Upper Endoscopic Lesions in the Elderly von Illa, Hamidine, Fanta, Ousseini, Laoul, Hassan Maman, Idrissa, Seriba Coulibaly, Mainou, Mamadou, Lamine, Hadja Zara Elh, Abdou, Haladou, Midou, Abdoul Razak Seydou, Cheick, Rakia Ali, Harissou, Adamou

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