The movement against U.S. involvement in the Vietnam War began smallâamong peace activists and leftist intellectuals on college campusesâbut gained national prominence in 1965, after the United States began bombing North Vietnam in earnest.
Coordinates: 38Â°53â²48â³N 77Â°01â²10â³W / 38.8968Â°N 77.0194Â°W / 38.8968; -77.0194. The National Academy of Medicine (NAM), formerly called the Institute of Medicine (IoM), is an American nonprofit, non-governmental organization.
AVM: An AVM (arteriovenous malformation) is a congenital disorder (one present at birth) of blood vessels in the brain, brainstem, or spinal cord that is characterized by a complex, tangled web of abnormal arteries and veins connected by one or more fistulas (abnormal communications). Surgery, which is the best-known and longest-standing treatment for AVM. 2  Surgery for an AVM involves identifying the margins of the malformation, ligating (tying off) or clipping the feeder arterial vessels, obliterating the draining veins, and removing or obliterating the nidus (the nest) of the AVM.