Hierarchical clustering analysis of the studied biomolecules in nasopharyngeal carcinoma. Red and green signals indicate cases with increased and decreased protein expression, respectively; white signals indicate missing cases. Two clusters are distinguished, red and green, with different predominant patterns of protein expression.
Krikelis et al. BMC Clinical Pathology 2013 13:1 doi:10.1186/1472-6890-13-1