title: Visits to three POs provide valuable information.
authors.forename: T M
authors.initials: TM
authors.lastname: Wolff
mesh_terms: D001291:Attitude of Health Personnel; D002140:California; D016536:Competitive Medical Plans / Q000639:trends*; D007400:Interprofessional Relations; D008389:Marketing of Health Services; D008910:Minnesota; D011216:Practice Management, Medical / Q000458:organization & administration*; D011362:Professional Corporations / Q000458:organization & administration*