You might hear about different kinds of B12 used in injections
the elderly, strict vegetarians (i.e., vegan), and patients with malabsorption problems are more likely to become deficient
And, indeed, when you put all the observational studies together, we find there is no signicant correlation between the levels of B12 in the blood and lung cancer, whether or not you smoked
Results were presented as n (%) for categorical data or median [interquartile range Q1Q3] for continuous data
These immune pathways contribute to airway hyperresponsiveness (AHR), mucin hypersecretion, and both systemic and local inflammation, ultimately leading to airflow obstruction [17, 18]