Effect of treatment with sublingual vitamin B12 in patients with B12 deficiency

Georgia Anastasiou, Fotios Barkas, Ermioni Petkou, Stratos Alexiadis, Efi Andalaki Foukaraki, Angeliki Andreadou, Vasilios Acholos, Ignatios Giavazis, Athanasios Garagounis, Kyriaki Gratsia, Ioanna Zografou, Charalampos Kapernopoulos, Fotios Karakostas, Maria Kosmanou, Konstantinos Kotsomytis, Theoharis Koufakis, Leonidas Kostalas, Eleftheria Michalopoulou, Loukas Balokas, Maria Barbresou, Eugenia Nikolaou, Barbara Duska, Dimitra Paraskeva, Dimitris Skoutas, Ioannis Spyrakopoulos, Dimitrios Chrysis, Maria Chorianopoulou, Evangelos Liberopoulos