Dimopoulos, Nikolaos Piperi, Christina Salonicioti, Anistea and Psarra, Vassiliki Gazi, Flerri Papadimitriou, Alexandros and Lea, Robert W. Kalofoutis, Anastasios, Correlation of folate, vitamin B-12 and homocysteine plasma levels with
depression in an elderly Greek population, Clinical Biochemistry, (40), 604-608, 2007, PERGAMON-ELSEVIER SCIENCE LTD, 0009-9120