Table 1. Overview of the combinations of classifiers and integration strategies that were tested.

	Type of integration
Classifier	None	Early	Intermediate	Late
NMC	+	+	+	+
SBC	+	+	+	+
3NN	+	+	+	+
SVM	+	+	+	+
Tree1 (No feature selection)	+	+	–	+
Tree2 (No pruning)	+	+	–	+
HybridTree (C)	–	–	+	–
HybridTree (E)	–	–	+	–

Tested combinations are indicated with a ‘+’, those not tested with a ‘–’. The methods with no integration were applied to both the expression and clinical data separately.