“Does the Gln27Gln Polymorphism of the Adrenoreceptor Beta 2 Gene Affect the Clinical Course of Chronic Obstructive Pulmonary Disease?”. Biomedical Research and Therapy, vol. 9, no. 5, May 2022, pp. 5043-50, https://doi.org/10.15419/bmrat.v9i5.738.