title: Twenty-first Mary McMillan lecture.
mesh_terms: D003479:Curriculum; D004500:Education, Graduate; D049673:History, 20th Century; D006801:Humans; D010506:Periodicals as Topic; D026741:Physical Therapy Modalities / Q000193:education / Q000266:history / Q000639:trends; D012952:Societies / Q000266:history / Q000458:organization & administration; D014481:United States