Professor P. K. Thomas: clinician, investigator, editor and leader—a retrospective appreciation.

P. K. Thomas (1926–2008) occupied a prominent place in British and world neurology during the second half of the 20th century. Here, his lasting achievements as clinical neurologist, clinician scientist and experimentalist, editor of monographs and journals and leader of professional developments in the UK and elsewhere are assessed. [ABSTRACT FROM AUTHOR]