Allergies, so they don't ingest something they are allergic to.
Huh can you be more specific
The tumor is either a benign (not cancer) of maligmant(cancer)
hope i could be of use:)
The answer is B: Some patients who have a poor hospital experience also have post-surgical complications.
This because this can't be a cause and effect because it's a survey study, and only 40% of the people who have poor hospital experience also have post-surgical complications.
Work out, eat healthy, and pay attention to your health