Answer:
1. Breast cancer is the fifth most common cause of cancer death - Positive statement
2. For women aged 60 to 69, breast cancer screening significantly reduces breast cancer mortality - Positive statement
3. Doctors should encourage women aged 60 to 69 to be screened for breast cancer - Normative statement
4. The government should force doctors to encourage women aged 60 to 69 to be screened for breast cancer - Normative statement