El-Sayed Ramadan, Reda Mohamed, et al. “Calf Muscle Pump Exercise and Preventive Measures: As Means for Prevention of Deep Vein Thrombosis and Its Manifestations Among a Postpartum Cesarean Section”. International Journal of Nursing Didactics, vol. 9, no. 04, Apr. 2019, pp. 49-60, doi:10.15520/ijnd.v9i04.2549.