• Benefits of health services. 

      Hjort, Peter Fredrik (Journal article; Peer reviewed, 1978)
    • Grading quality of evidence and strength of recommendations. 

      Atkins, David; Best, Dana; Briss, Peter A; Eccles, Martin; Falck-Ytter, Yngve; Flottorp, Signe; Guyatt, Gordon H; Harbour, Robin T; Haugh, Margaret C; Henry, David; Hill, Suzanne; Jaeschke, Roman; Leng, Gillian; Liberati, Alessandro; Magrini, Nicola; Mason, James; Middleton, Philippa; Mrukowicz, Jacek; O'Connell, Dianne; Oxman, Andrew David; Phillips, Bob; Schünemann, Holger J; Edejer, Tessa Tan-Torres; Varonen, Helena; Vist, Gunn Elisabeth; Williams, John W; Zaza, Stephanie (Journal article; Peer reviewed, 2004-06-19)
      Users of clinical practice guidelines and other recommendations need to know how much confidence they can place in the recommendations. Systematic and explicit methods of making judgments can reduce errors and improve ...
    • Health services research: why and how? 

      Hjort, Peter Fredrik (Journal article; Peer reviewed, 1976)
      It is useful to divide medical research into three areas: biomedical, clinical, and health services research. The areas partly overlap, and health services research is also related to social services research. Research is ...
    • Legehelikopter i fjellbygder. Evaluering av ett års drift av Dombåsbasen 

      Karper, Sverre; Stokstad, Ingvar; Hjort, Peter Fredrik; Indrebø, Tor (Journal article; Peer reviewed, 1991-01-20)
      On 1 January 1988 the Norwegian Air Ambulance Plan was put into effect. The operational base for the regional counties Oppland, parts of South Trøndelag, Møre and Romsdal and Hedmark was established in the township of ...