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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
Did you know?
The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
![Coronary artery bypass graft (CABG). The grafts are often obtained from the patient’s saphenous vein](https://biology-forums.com/gallery/47/medium_14755_11_11_12_7_15_45_100282437.jpeg)
![The grand opening of the huge Miraflores lock on the Panama Canal in October, 1914. The locks were b](https://biology-forums.com/gallery/47/medium_6_02_03_16_7_45_22_234071402.jpeg)