Albachary, Haneen S., Shaymaa Raisan, and Ziyad Malgooth. 2022. “Correlation Between Human Serum Immunoglobulin A and Complement Component Receptor 1 (C5aR1) to Chronic Obstructive Pulmonary, Asthma and Tonsillitis Diseases”. Journal of Biotechnology Research Center (JOBRC) 16 (1):13-20. https://doi.org/10.24126/jobrc.2022.16.1.626.