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doi.org/10.1097/00002508-200311000-00003, hdl.handle.net/1765/66570
Clinical Journal of Pain
Department of Pediatric Surgery

Peters, J., Koot, H., Grunau, R., de Boer, J., van Druenen, M., Tibboel, D., & Duivenvoorden, H. (2003). Neonatal Facial Coding System for Assessing Postoperative Pain in Infants: Item Reduction is Valid and Feasible. Clinical Journal of Pain, 19(6), 353–363. doi:10.1097/00002508-200311000-00003