Table 1. The distribution of the questions’ relevance.

92 Questions Asked:
19 Questions regarding the general aspects of clinical research
	2	What is a clinical trial
	5	Previous research on human subjects
	8	The costs associated with the participation at the clinical trial
	4	The availability of the drug on the market
67 Questions regarding the specific aspects of clinical trial
	4	The frequency of visits at the medical center
	4	The length of the visits at the medical center
	10	The length of the treatment/clinical trial
	4	Effectiveness of the study medication
	16	Adverse reactions (AR)
	4	Frequency of AR
	7	The type/description of AR
	5	The severity of AR and ways to solve them
	14	The number and quantity of biological samples
	5	Genetic tests
	6	Discontinuation of current/concomitant medication
	4	The effects of omitting the administration of a dose of research medication
6 Questions unrelated to the clinical trial
	2	Risk factors associated with the current condition
	2	The evolution of the condition
	1	Treatment after the end of the clinical trial
	1	Lifestyle