Poomhirun, P., W. Ongvisetpaiboon, and V. Arnuntasupakul. “A Study of Patients’ Knowledge in Self-Care Undergoing Neuraxial Block”. Nursing Research and Innovation Journal, vol. 24, no. 1, July 2018, pp. 69-79, https://he02.tci-thaijo.org/index.php/RNJ/article/view/84996.