Kitikan Thana-udom และผู้แต่งคนอื่นๆ. (2016) How to Approach Difficult Patients with Chronic Headache?. <i>Siriraj Medical Journal</i>, <i>68</i>(1), 51-56.Kitikan Thana-udom และผู้แต่งคนอื่นๆ. "How to Approach Difficult Patients with Chronic Headache?". Siriraj Medical Journal 68 (2016):51-56.Kitikan Thana-udom และผู้แต่งคนอื่นๆ. How to Approach Difficult Patients with Chronic Headache?. Faculty of Medicine Siriraj Hospital:ม.ป.ท. 2016.