Petkan, Aungkana, Prasong Tanmahasamut, Ariya Hengthaveesapsiri, Kritsana Sawatsri, and Warattaya Rujiwee. 2020. “Effect of Instructive Information With and Without the Use of Pictures on Anxiety of Women Receiving First-Time Transvaginal/Tansrectal Ultrasonography”. Nursing Science Journal of Thailand 38 (2):88-98. https://he02.tci-thaijo.org/index.php/ns/article/view/226074.