Review

Andrej DUKÁT, Juraj PAYER, Peter GAVORNÍK, Fedor ŠIMKO: Biomarkers as a Means of Pre-cation of Chronic Heart Failure         

Clinical studies
Mária KOLESÁROVÁ, Denisa DERCOVÁ, Jozef CHOVANEC, Hedviga KOŠUTHOVÁ: Targeted Therapy for locally Advanced and Metastatic Kidney Cancer        
Pavol OMANÍK, Natália DAUMOVÁ, Veronika CHRENKOVÁ, Jozef BABALA: Orthotic treatment for pectus carinatum in children and adolescents   

Reviews
Rastislav EDELSTEIN, Marek MATAJS, Phuong Truc PHAM, Vladimír JAVORKA: Halitosis – epidemiology, etiology and clinical mamanegment        
Lucia MIKURČÍKOVÁ, Ivana TRELLOVÁ: Types of experimental designs in single-subject research studies          

Case report
Dmytro DMYTRIIEV, Oleksandr DOBROVANOV, Karol KRALINSKY,  Kostiantyn  DMYTRIIEV, Mykola MELNYCHENKO: A case report of successful experience of using adaptive support ventilation in the pediatric patient with viral interstitial pneumonia COVID-19 positive