Author contribution: Sinitsina II — preparing a manuscript for publication, literature analysis, editing, writing an introduction, abstract and ‘Vulnerable participants or patients’ section; Nenascheva NM — preparing a manuscript for publication, analysis of literature for ‘Specific nature of obtaining informed consent from patients with bronchial asthma and chronic obstructive pulmonary disease’ section; Peredelskaya MYu — preparing a manuscript for publication, analysis of literature for ‘Specific nature of obtaining informed consent from patients with bronchial asthma and chronic obstructive pulmonary disease’ section; Sosin DN — preparing a manuscript for publication, analysis of literature for ‘Specific nature of obtaining informed consent from psychiatric patients’ section.