Does the Cellular Phone Help to Communicate When Face-to-Face Contacts are Difficult?

Peirce RS Frone MR Russell M Cooper ML Mudar P. A longitudinal model of social contact, social support, depression and alcohol use. Health Psychol 2000;19:28–38.

George LK Blazer DG Hughes DC Fowler N. Social support and the outcome of major depression. Br JPsychiatry 1989;154:478–85.

Beck AT Steer RA Garbin MG . Psychometric properties of the Beck Depression Inventory: Twenty-five years of evaluation. Clin Psychol Rev 1988;8:77–100.