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Vitamin B12 (cobalamin) deficiency in elderly patients
Emmanuel Andrès, Noureddine Henoun Loukili, Esther Noel, Georges Kaltenbach, Maher Ben Abdelgheni, Anne Elisabeth Perrin, Marie Noblet-Dick, Frédéric Maloisel, Jean-Louis Schlienger and Jean-Frédéric Blicklé
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