GBP4 and sarcoidosis: The top10 genes were BATF2, IFIT3, C1QB, IFITM3, CARD17, GBP5, OAS3, ETV7, AIM2, and GBP4 that with the hidden layer weights >50%were chosen as the ideal candidates for building the model and which also serves as gene signatures to build multilayer perceptron neural network to classifying sarcoidosis from PTB.