title: Refocusing upstream - three decades of public health: a personal reflection.
mesh_terms: D006291:Health Policy; D049673:History, 20th Century; D049674:History, 21st Century; D011634:Public Health / Q000266:history*; D011635:Public Health Administration / Q000266:history*; D013222:State Medicine / Q000266:history / Q000458:organization & administration; D006113:United Kingdom