Letter on “Comorbidities in head and neck cancer: agreement between self-report and chart review” by Mukerji et al

Mukerji SS Duffy SA Fowler KE Comorbidities in head and neck cancer: agreement between self-report and chart review. Otolar-yngol Head Neck Surg 2007; 136(4):536–42.

Paleri V Narayan R Wight RG. Descriptive study of the type and severity of decompensation caused by comorbidity in a population of patients with laryngeal squamous cancer. J Laryngol Otol 2004; 118(7): 517–21.

Paleri V Wight RG. A cross-comparison of retrospective notes extraction and combined notes extraction and patient interview in the completion of a comorbidity index (ACE-27) in a cohort of United Kingdom patients with head and neck cancer. J Laryngol Otol. 2002; 116(11): 937–41.