@article{walach_circular_2006,
	title = {Circular instead of hierarchical: methodological principles for the evaluation of complex interventions},
	volume = {6},
	issn = {1471-2288},
	shorttitle = {Circular instead of hierarchical},
	url = {https://bmcmedresmethodol.biomedcentral.com/articles/10.1186/1471-2288-6-29},
	doi = {10.1186/1471-2288-6-29},
	language = {en},
	number = {1},
	urldate = {2021-04-01},
	journal = {BMC Medical Research Methodology},
	author = {Walach, Harald and Falkenberg, Torkel and Fønnebø, Vinjar and Lewith, George and Jonas, Wayne B},
	month = dec,
	year = {2006},
	keywords = {*Outcome Assessment (Health Care)/methods, *Randomized Controlled Trials as Topic/methods, *Reproducibility of Results, *Research Design, *Technology Assessment, Biomedical/methods, Evidence-Based Medicine, Humans, Outcome Assessment, Health Care, Placebos, Randomized Controlled Trials as Topic, Reproducibility of Results, Research Design, Sensitivity and Specificity, Technology Assessment, Biomedical},
	pages = {29},
}

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