1. Lung function at three months after hospitalization due to COVID‑19 pneumonia: Comparison of alpha, delta and omicron variant predominance periods
   Vasiliki Georgakopoulou et al, 2024, Experimental and Therapeutic Medicine CrossRef
2. Pathophysiological basis of hepatopulmonary syndrome
   S.M. Chooklin et al, 2024, GASTROENTEROLOGY CrossRef