[Can studies on health economics be done without any requirements?].
Lindgren
B
B
Jacobson
L
L
D003365:Costs and Cost Analysis; D004470:Economics, Medical; D006302:Health Services Research / Q000592:standards*; D006801:Humans; D006967:Hypersensitivity / Q000191:economics; D011785:Quality Assurance, Health Care; D013548:Sweden