Tareen, Attiya, Tariq Butt, and Bazla Ali. 2017. “Helicobacter Pylori Infection in Patients With Chronic Urticaria and Dyspepsia, Experience from a Developing Country”. Journal of Pakistan Association of Dermatologists 26 (3):206-13. http://www.jpad.com.pk/index.php/jpad/article/view/43.