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Kessler RC, Berglund P, Chiu WT, Demler O, Heeringa S, Hiripi E, Jin R, Pennell BE, Walters EE, Zaslavsky A, Zheng H.
Kessler RC, et al. Among authors: walters ee.
Int J Methods Psychiatr Res. 2004;13(2):69-92. doi: 10.1002/mpr.167.
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