Turn on 2-Step Verification. When you enable 2-Step Verification (also known as two-factor authentication), you add an extra layer of security to your account. You sign in with something you know (your password) and something you have (a code sent to your phone). Go to the 2-Step Verification page. You might have to sign in to your Google Account.
Lung function will also be affected by, or co-vary, with other factors, such as smoking and chronic respiratory diseases. However, the relationships between these variables are not always obvious as some smokers never develop symptoms and lung function decline, while some never smokers become ill, etc [1, 2].
Several factors determine the stage of. lung cancer, such as: the size of the tumor, whether the tumor has spread to the lymph. glands inside the chest, and whether the tumor has spread to other parts of the body. Since the proper therapy depends on the stage, it is important to determine the stage of.