Source: van Mourik, D. J. A., Nagelhout, G. E., de Vries, H., van den Putte, B., Cummings, K. M., Borland, R., ... & Willemsen, M. C. (2020). Quasi-experimentally examining the impact of introducing tobacco pictorial health warnings: Findings from the International Tobacco Control (ITC) 4C and...