1. [1] Amiri Farahani L, Abbasi Shavazi MJ. Caesarean section change trends in Iran and some demographic factors associated with them in the past three decades. J Fasa Univ Med Sci 2012; 2: 127-134. (Persian).
2. Étiologie des douleurs en obstétrique
3. The nature of labor pain
4. [4] Mirzaei F, Wine SA, Kaviani M, Rajai S. Changes in plasma cortisol and serotonin and decreased anxiety levels during labor in nulliparous women after smelling Lavender essence. Univ Magazine 2010; 16: 245-254. (Persian).
5. [5] Vakilian K, Keramat A, Mousavi A, Shariati M, Ajami M, Attarha M. The effect of lavender oil inhalation on labor pain. J Shahrekord Univ Med Sci 2012; 14: 34-40. (Persian).