TY - GEN AU - Line,B R TI - A new perspective and old problems SN - 0161-5505 PY - 1981///1118 KW - Humans KW - Lung KW - diagnostic imaging KW - Lung Diseases KW - Lung Diseases, Obstructive KW - Pressure KW - Pulmonary Circulation KW - Pulmonary Embolism KW - Tomography, Emission-Computed KW - Ventilation-Perfusion Ratio N1 - Publication Type: Journal Article ER -