sentences:  Both classification systems elected to include a new chapter on these conditions.This decision aimed to improve detection and diagnosis of these commonly overlooked conditions.Stein has influenced the field by collaboration (across South Africa, Africa, and the world), by mentorship (his mentees have worked on a range of topics relevant to South Africa and Africa, and they occupy leadership posts in a number of areas including addiction psychiatry, child health, liaison psychiatry, neurogenetics, neuroimaging, neuropsychiatry, public mental health, psychopharmacology, and psychotherapy), and by publication (Google h-index > 140, perhaps the highest of any African scientist).