Ramlan, A. A. W., Ratnaningrum, A., & Marsaban, A. H. M. (2021). A randomized controlled trial of infraorbital block using ketamine 1% for intra- and postoperative analgesia in children for ambulatory cleft lip correction. Medical Journal of Indonesia, 30(1), 33-8. https://doi.org/10.13181/mji.oa.204395