WHO	World Health Organization
CT	Computed Tomography
MRI	Magnetic Resonance Imaging
CAD	Computer-Aided Diagnosis
BCDU-Net	Bi-directional ConvLSTM U-Net with Densely connected convolutions
FCN	Fully Convolutional Neural Network
CNN	Convolutional Neural Network
BConvLSTM	Bidirectional Convolutional LSTM
LIDC	Lung Image Database Consortium
IDRI	Infectious Disease Research Institute
XML	Extensible Markup Language
DICOM	Digital Imaging and Communications in Medicine
HU	Hounsfield unit
ROC	Receiver Operating Characteristic
AUC	Area under the ROC Curve