APA (7th ed.) Citation

KA, H., S, W., E, M., H, C., & M, M. (2009). Persistence and change in pediatric symptom checklist scores over 10 to 18 months. Academic pediatrics, 9(4), 270. https://doi.org/10.1016/j.acap.2009.03.004

Chicago Style (17th ed.) Citation

KA, Hacker, Williams S, Myagmarjav E, Cabral H, and Murphy M. "Persistence and Change in Pediatric Symptom Checklist Scores over 10 to 18 Months." Academic Pediatrics 9, no. 4 (2009): 270. https://doi.org/10.1016/j.acap.2009.03.004.

MLA (9th ed.) Citation

KA, Hacker, et al. "Persistence and Change in Pediatric Symptom Checklist Scores over 10 to 18 Months." Academic Pediatrics, vol. 9, no. 4, 2009, p. 270, https://doi.org/10.1016/j.acap.2009.03.004.