Exploratory multigroup structural equation modeling approach to analyzing H. pylori infection, serological pepsinogen levels, and life style factors in an elderly population in Cos... by Gabriel Molina-Castro, Stefany Matarrita-Muñoz, Silvia Elena Molina-Castro, Ericka Méndez-Chacón, Clas Une, Vanessa Ramírez-Mayorga

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