First, we relied on Google searches to identify the study sample
However, an argument for causal relationship might be inferred from studies demonstrating that chronic bronchitis, which is a common feature of COPD [126], is associated with increased VIP innervation to the mucus glands [127]
Oxidative damage is found in inflammatory states, and it causes ischemic events tissue damage caused by the deficient flow of oxygenating blood
Scientific References Falutz J
Use it only when no more specific modifier applies, specifically XU (Unusual Non-Overlapping Service), XS (Separate Structure), XE (Separate Encounter), or XP (Separate Practitioner)
doi:10.3390/molecules191119066 Chris Centeno, MD is a specialist in regenerative medicine and the new field of Interventional Orthopedics