Khunprabaht, J.; Pongrojpaw, D.; Chanthasenanont, A.; Benchahong, S.; Pattaraarchachai, J.; Suwannarurk, K. Comparison between Lidocaine Spray and Cryotherapy for Pain Reduction from Amniocentesis in Second Trimester Pregnancy; A randomized controlled trial. Thai J Obstet Gynaecol 2024, 32, 13-21.