Opera omnia, nitidus quam unquam hactenus edita, plurimum emendata indicibus rerum copiosissimis, ac distinctione characterum exornata.
Amstelaedami: Apud Henricum Wetstenium, 1682.
"Willis was remarkable for his careful clinical observation. He was second only to Sydenham in his day. To him we owe the original descriptions of several conditions" (Morton's Medical Bibliography, Fifth Edition, Edited by Jeremy M. Norman)..
"British physician, leader of the English iatrochemists, who attempted to explain the workings of the body from current knowledge of chemical interactions; he is known for his careful studies of the nervous system and of various diseases. An Oxford professor of natural philosophy, he opened a London practice in 1666 that became the most fashionable and profitable of the period" (Britannica).
"Sedleian professor of natural philosophy at Oxford, and a founder of the Royal Society, born at Great Bedwyn in Wiltshire. He was educated at Christ Church, Oxford and took his medical degree in 1660. He made several important contributions to medicine including his description of the arterial supply to the base of the brain (circle of Willis) in Cerebri anatome nervorum que descriptio et usus, published in 1664; a description of epidemic typhoid fever in De Febribus in 1659; and of the symptoms in achalasia cardia and its treatment in Pharmaceutica Rationalis in 1674. He introduced the concept of 'involuntary' and 'voluntary' or 'volitional' movements in 1664" (A Dictionary of the History of Medicine, Anton Sebastian).