
If you’ve been to the doctor, you probably know what to do when you’re handed a plastic cup and shown to the bathroom.
http://www.physnews.com/bio-medicine-news/cluster1232272008/
If you’ve been to the doctor, you probably know what to do when you’re handed a plastic cup and shown to the bathroom.
http://www.physnews.com/bio-medicine-news/cluster1232272008/