Thompson, R. S., Lawrence, D. M., Huebner, C. E., & Johnston, B. D. (2004). Expanding developmental and behavioral services for newborns in primary care: Implications of the findings. American Journal of Preventive Medicine, 26(4), 367–371. Model(s): Healthy Steps (National Evaluation 1996 Protocol) Not applicable (NA) - implementation study Study reviewed under: Handbook of Procedures and Standards, Version 1