1. A method for classifying tissue suspected of being abnormal in the body of a subject as being malignant or benign, comprising: generating a set of selection features relating to data obtained about a subject which has the abnormal tissue; performing at least three different statistical applications using the set of selection features to generate further selection features; using the further selection features in combination with the set of selection features to generate a feature vector for the abnormal tissue; feeding the feature vector into a neural network; and obtaining a result from the neural network as to whether the abnormal tissue is malignant or benign.