Anthropodermic bibliopegy performed, or collected by medical doctors, who have access to cadavers, sometimes those of executed criminals, such as the case of John Horwood in 1821 and the Red Barn Murder in 1828. Another tradition, with less supporting evidence, is that books of erotica or the occult have been bound in human skin. The Royal College of Surgeons of Edinburgh preserves a notebook bound in the skin of the murderer William Burke after his execution and subsequent public dissection by Professor Alexander Monro in 1829. What Lawrence Thompson called "the most famous of all anthropodermic bindings" is exhibited at the Boston
Vertebral artery dissection occur (1% of cases). This arises due to rupture of the artery and accumulation of blood in the subarachnoid space. It may be characterized by a different, usually severe headache; it may also cause a range of additional neurological symptoms. 13–16% of all people with vertebral or carotid dissection have dissection in another cervical artery. It is therefore possible for the symptoms to occur on both sides, or for symptoms of carotid artery dissection to occur at the same time as those of vertebral artery dissection. Some give a figure of multiple vessel dissection as high as 30%. The causes