Beekman, A. T., De Beurs, E., Van Balkom, A. J., Deeg, D. J., Van Dyck, R., & Van Tilburg, W. (2000). Anxiety and depression in later life: co-occurrence and communality of risk factors. American Journal of psychiatry, 157(1), 89-95.
Beekman, A. T., De Beurs, E., Van Balkom, A. J., Deeg, D. J., Van Dyck, R., & Van Tilburg, W. (2000). Anxiety and depression in later life: co-occurrence and communality of risk factors. American Journal of psychiatry, 157(1), 89-95.