“…Over the past 20 years, a series of studies has been conducted to improve the recognition of depression by screening primary care patients for depressive symptoms ( Johnstone and Goldberg 1976;Moore, Silimper, and Bobula 1978;Zung, Magill, Moore et al 1983;Linn and Yager 1984;Hoeper, Kessler, Nyez, et al 1984;Shapiro, German, and Skinner 1987;Magruder-Habib, Zung, Feussner, et al 1989;and Feussner 1990;Ormel, Koeter, van den Brink, et al 1991;Coyne, Fechner-Bates, and Schwenk 1994;Dorwick and Buchan 1995;Greenfield, Meszler-Reizes, Magruder, et al 1997;Riefler, Kessler, Bernhard, et al 1996;Coyne, Klinkman, Gallo, et al 1998). Katon and Gonzales (1994) reviewed the evidence on randomized controlled trials of screening interventions published until 1993.…”