Šifrer F. Cllnical picture of chronic respiratory insufficiency. Obzor Zdrav Neg [Internet]. 1992 Jun. 1 [cited 2024 May 19];26(3/4):145-7. Available from: https://obzornik.zbornica-zveza.si:8443/index.php/ObzorZdravNeg/article/view/1946