Table 1.

Inclusion and exclusion criteria of studies of this systematic review

Inclusion criteria	Exclusion criteria
Original primary studies	Other than original primary studies, such as reviews, conference papers, consensus papers, commentaries and letters to editors
English language	Other language than English
Investigating physicians’ perceptions on the uptake of biosimilars (physicians in particular or at least 45% of physicians among other healthcare professionals, although only physicians perceptions were taken into account in this review)	Investigating other healthcare professionals’ perceptions on the uptake of biosimilars or publications with less than 45% of physicians of all participants involved or in which the physicians’ perceptions are not separated in the results of the study
Publications on the physicians’ perceptions on the automatic substitution of biologic medicines	Publications on the physicians’ perceptions on the automatic or generic substitution of other medicines than biologics