APA
Hesselgard K., Larsson S., Romner B., Strömblad L. & Reinstrup P. (20070524). Validity and reliability of the Behavioural Observational Pain Scale for postoperative pain measurement in children 1-7 years of age. : Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies.
Chicago
Hesselgard Karin, Larsson Sylvia, Romner Bertil, Strömblad Lars-Göran and Reinstrup Peter. 20070524. Validity and reliability of the Behavioural Observational Pain Scale for postoperative pain measurement in children 1-7 years of age. : Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies.
Harvard
Hesselgard K., Larsson S., Romner B., Strömblad L. and Reinstrup P. (20070524). Validity and reliability of the Behavioural Observational Pain Scale for postoperative pain measurement in children 1-7 years of age. : Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies.
MLA
Hesselgard Karin, Larsson Sylvia, Romner Bertil, Strömblad Lars-Göran and Reinstrup Peter. Validity and reliability of the Behavioural Observational Pain Scale for postoperative pain measurement in children 1-7 years of age. : Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies. 20070524.