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BACKGROUND Patients with treatment-resistant major depressive disorder (MDD) remain a common clinical challenge. METHODS This 6-week, randomised, open-label, rater-blinded trial evaluated(More)
Jorgensen, L.K., Diameters of cubic graphs, Discrete Applied Mathematics 37/38 (1992) 347-351. We prove that a graph with maximum degree 3 and diameter d 2 4 cannot have exactly two vertices less(More)