title: Importance of updating old cohorts for new findings.
authors.affiliation: Environmental and Occupational Health, Faculty of Public Health, Kuwait University, Kuwait.
authors.forename: Harri
authors.initials: H
authors.lastname: Vainio
authors.affiliation: Department of Research, Group of Etiological Cancer Research, Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo, Norway.|Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.|Genetic Epidemiology Group, Folkhälsan Research Center, Helsinki, Finland.|Department of Community Medicine, University of Tromsø, The Arctic University of Norway, Tromsø, Norway.
authors.forename: Elisabete
authors.initials: E
authors.lastname: Weiderpass
mesh_terms: D002273:Carcinogens; D002619:Chemical Warfare Agents / Q000009:adverse effects*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D009151:Mustard Gas / Q000009:adverse effects*; D016273:Occupational Exposure; D012142:Respiratory Tract Neoplasms / Q000139:chemically induced*; D012307:Risk Factors; D014728:Veterans
chemical_list: D002273:Carcinogens; D002619:Chemical Warfare Agents; D009151:Mustard Gas
keywords: Cohort studies; Mustard gas