[The problematic difference].
Trygve
T
Holmøy
Reidun
R
Førde
D006699:Home Care Services / Q000191:economics / Q000592:standards; D006801:Humans; D009664:Norway; D012121:Respiration, Artificial / Q000191:economics / Q000592:standards; D012122:Ventilators, Mechanical / Q000191:economics