Fig. 1From: MALDI-TOF mass spectrometry for sub-typing of Streptococcus pneumoniaeA cluster dendrogram of serotype-organised MALDI-TOF mass spectrum data for 16 serotypes + non-typeable (NT) isolates. The isolate selection includes 130 pneumococcal isolates from 46 global pneumococcal sequence clusters (GPSC). The inner metadata ring denotes GPSC and the outer ring serotypeBack to article page