Libu, C.;                     Otelea, M.R.;                     Arghir, I.A.;                     Rascu, A.;                     Antoniu, S.A.;                     Arghir, O.C.    
        Challenges in Diagnosing Occupational Chronic Obstructive Pulmonary Disease. Medicina 2021, 57, 911.
    https://doi.org/10.3390/medicina57090911
    AMA Style
    
                                Libu C,                                 Otelea MR,                                 Arghir IA,                                 Rascu A,                                 Antoniu SA,                                 Arghir OC.        
                Challenges in Diagnosing Occupational Chronic Obstructive Pulmonary Disease. Medicina. 2021; 57(9):911.
        https://doi.org/10.3390/medicina57090911
    
    Chicago/Turabian Style
    
                                Libu, Cristiana,                                 Marina Ruxandra Otelea,                                 Ioan Anton Arghir,                                 Agripina Rascu,                                 Sabina Antonela Antoniu,                                 and Oana Cristina Arghir.        
                2021. "Challenges in Diagnosing Occupational Chronic Obstructive Pulmonary Disease" Medicina 57, no. 9: 911.
        https://doi.org/10.3390/medicina57090911
    
    APA Style
    
                                Libu, C.,                                 Otelea, M. R.,                                 Arghir, I. A.,                                 Rascu, A.,                                 Antoniu, S. A.,                                 & Arghir, O. C.        
        
        (2021). Challenges in Diagnosing Occupational Chronic Obstructive Pulmonary Disease. Medicina, 57(9), 911.
        https://doi.org/10.3390/medicina57090911