Comorbidity of headache and functional constipation in children: A cross-sectional survey
Soror Inaloo, Seyyed Mohsen Dehghani, Seyyed Mohammad Hashemi, Mojtaba Heydari, Seyyed Taghi Heydari
(Turk J Gastroenterol 2014; 25: 508-511) DOI: 10.5152/tjg.2014.6183