Answer:
Chest pain can have causes that aren't due to underlying disease. Examples include heavy lifting, weight lifting, trauma to the chest, or swallowing a large piece of food.
Explanation:
The answer would be peptic ulcer, Peptic ulcer
It's important because, you need to a valid source for a health situation. It could cause more than good if you don't know if the health source is not true.
The answer is B
explanation: ..
