Zamani, B., Sadeghi Movahhed, F., Hoseini, Z. and Zamani, N. (2016) “Frequency and severity of mental disorders in patients with non-organic chest pain and factors contributing to it, 2013”, International Journal of Scientific Reports, 2(2), pp. 36–40. doi: 10.18203/issn.2454-2156.IntJSciRep20160501.