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2024年5月28日 · Ankylosing spondylitis (AS) is a rare type of autoimmune disease that causes arthritis in your spine. It's a lifelong condition that usually starts in your lower back. It can spread up to your...
2024年5月24日 · What Is BMI? Body mass index (BMI) uses your height and weight measurements to estimate how much body fat you have. It’s a quick screening tool that can help find out if you are in a healthy...
