title: Comorbidity as a focus of clinical cancer trials: an important unmet need.
authors.forename: Maurie
authors.initials: M
authors.lastname: Markman
mesh_terms: D002986:Clinical Trials as Topic; D015897:Comorbidity; D006801:Humans; D009369:Neoplasms / Q000150:complications*; D018579:Patient Selection; D012106:Research / Q000592:standards