S. I. Antunes, M. M. Freitas, C. Martins, S. Bento, Ângela Pereira, and S. Lorga, “Level of Physical Activity in Patients with Coronary Heart Disease After Phase 2 of the Cardiac Rehabilitation Program”, SPMFR, vol. 32, no. 1, pp. 24–28, Jun. 2020.