Noghani, M., Rezaeizadeh, H., Fazljoo, S. M. B., Yousefifard, M. and Keshavarz, M. (2018) “Gastrointestinal Headache; a Narrative Review”, Archives of Academic Emergency Medicine, 4(4), pp. 171–183. doi: 10.22037/aaem.v4i4.246.