Additional effects of psychological interventions on subjective and objective outcomes compared with exercise-based cardiac rehabilitation alone in patients with cardiovascular disease: A systematic review and meta-analysis. - Albus C; Herrmann-Lingen C; Jensen K; Hackbusch M; Münch N; Kuncewicz C; Grilli M; Schwaab B; Rauch B (European journal of preventive cardiology, 2019)