title: PTO pyramid.
authors.affiliation: John Muir Mt Diablo Health System, Walnut Creek, CA, USA. gary.boyd@jmmdhs.com
authors.forename: Gary
authors.initials: G
authors.lastname: Boyd
mesh_terms: D006801:Humans; D009042:Motivation; D010557:Personnel Administration, Hospital; D011872:Radiology Department, Hospital / Q000458:organization & administration; D014481:United States