Three-year clinical experience with the long-acting injectable formulation of the atypical antipsychotic risperidone by Giovanoglou Maria, Demetriades Athanasios, Gousis Demetrios, Karkatzouli Christina, Robotis Perikles, Fotara Ioanna, Kalogeropoulou Aikaterini, Kessidou Sofia, Leotsakou Christina, Paterakis Perikles