title: Methodological challenges in whole systems research.
authors.affiliation: Kaiser Permanente Center for Health Research, Portland, OR, USA.
authors.forename: Charles
authors.initials: C
authors.lastname: Elder
authors.forename: Mikel
authors.initials: M
authors.lastname: Aickin
authors.forename: Iris R
authors.initials: IR
authors.lastname: Bell
authors.forename: Vinjar
authors.initials: V
authors.lastname: Fønnebø
authors.forename: George T
authors.initials: GT
authors.lastname: Lewith
authors.forename: Cheryl
authors.initials: C
authors.lastname: Ritenbaugh
authors.forename: Marja
authors.initials: M
authors.lastname: Verhoef
mesh_terms: D035843:Biomedical Research / Q000458:organization & administration*; D002986:Clinical Trials as Topic / Q000592:standards; D000529:Complementary Therapies / Q000458:organization & administration*; D019317:Evidence-Based Medicine / Q000458:organization & administration*; D006801:Humans; D008962:Models, Theoretical; D012107:Research Design; D012109:Research Support as Topic; D014481:United States