Impact of switching to new spirometric reference equations on severity staging of airflow obstruction in COPD: a cross-sectional observational study in primary care

por Sluga, Romina, Smeele, Ivo JM, Lucas, Annelies E, Thoonen, Bart P, Grootens-Stekelenburg, Joke G, Heijdra, Yvonne F, Schermer, Tjard R
Publicado 2014