Stremersch, S., Landsman - Schwartz, V. and Venkataraman, S. (2013). The Relationship Between DTCA, Drug Requests and Prescriptions: Uncovering Variation in Specialty and Space Marketing Science, 32(1):89--110.
Liberali, G., Urban, G. and Hauser, J. (2012). Competitive Information, Trust, Brand Consideration and Sales: Two Field Experiments International Journal of Research in Marketing, 30(2):101--113.