1. Akre, O., Barone-Adesi, F., Pettersson, A., Pearce, N., Merletti, F., & Richiardi, L. (2011). Differences in citation rates by country of origin for papers published in top-ranked medical journals: do they reflect inequalities in access to publication? Journal of Epidemiology and Community Health, 65(2), 119–123.
2. Andersen, J., Belmont, J., & Cho, C. T. (2006). Journal impact factor in the era of expanding literature. Journal of Microbiology, Immunology, and Infection, 39(6), 436–443.
3. Banta, D., & Jonsson, E. (2009). History of HTA: Introduction. International Journal of Technology Assessment in Health Care, 25(Suppl 1), 1–6.
4. Barbui, C., Cipriani, A., Malvini, L., & Tansella, M. (2006). Validity of the impact factor of journals as a measure of randomized controlled trial quality. Journal of Clinical Psychiatry, 67(1), 37–40.
5. Bhandari, M., Busse, J., Devereaux, P. J., Montori, V. M., Swiontkowski, M., Tornetta Iii, P., et al. (2007). Factors associated with citation rates in the orthopedic literature. Canadian Journal of Surgery, 50(2), 119–123.