title: The 5000 hats of David Klein. Interview.
mesh_terms: D003159:Community-Institutional Relations; D003727:Dental Auxiliaries / Q000193:education; D004497:Education, Dental; D006686:Hobbies; D006801:Humans; D008910:Minnesota; D010781:Photography; D011215:Practice Management, Dental; D012575:Schools, Dental