title: Phase I drug combination trial design: walking the tightrope.
authors.forename: Paul
authors.initials: P
authors.lastname: Hamberg
authors.forename: Jaap
authors.initials: J
authors.lastname: Verweij
mesh_terms: D017321:Clinical Trials, Phase I as Topic; D004359:Drug Therapy, Combination; D006801:Humans; D012107:Research Design