Fig. 1From: 30 years of dengue fatal cases in Brazil: a laboratorial-based investigation of 1047 casesMatrix layout representing all combination of laboratorial diagnostic methods performed to study dengue fatal cases. Vertical bars indicate the number of individuals who were tested using each combination of techniques sorted by size. In the bottom of bars, dark circles in the matrix indicate when a combination of techniques was done. The bar chart on the left indicates the frequency of each technique employedBack to article page