Case Reports in Medicine [8] T. P. Brown, “Middle ear symptoms while ﬂying: ways to prevent a severe outcome,” Postgraduate Medicine, vol. 96, no. 2, pp. 135–142, 1994. [9] T. L. Clenney and L. F. Lassen, “Recreational scuba diving injuries,” American Family Physician, vol. 53, no. 5, pp. 1761– 1766, 1996. [10] R. E. Moon, “Treatment of diving emergencies,” Critical Care Clinics, vol. 15, no. 2, pp. 429–456, 1999. [11] K. Fukamauchi, “Studies on tocogram with bearing-down eﬀorts during labor—analysis of waveform and its clinical signiﬁcance,” Acta Obstetrica et Gynaecologica Japonica, vol. 37, no. 7, pp. 1081–1090, 1985. [12] G. Yildirim and N. K. Beji, “Eﬀects of pushing techniques in birth on mother and fetus: a randomized study,” Birth, vol. 35, no. 1, pp. 25–30, 2008. [13] P. Karakostov, G. Papurov, and P. Shopova, “Rupture of the tympanic membrane during childbirth,” Akusherstvo i Ginekologiya, vol. 13, no. 6, pp. 498–499, 1974. 3