Somatization symptomology and its association with stress in patients with irritable bowel syndrome - Saira Akhlaq; Nosheen Kazmi; Syed Murtaza Hassan Kazmi; Muslim Atiq; Sajawal Hussain; Ahmed Bajwa; Abdul Ahad; Muhammad Yaqoob Akhtar; Kalsoom Akhlaq; Mohammad Rizwan (PLoS ONE)