1. Aikins JS, Kunz JC, Shortliffe EH (1983) Puff: An expert system for interpretation of pulmonary function data. Comput Biomed Res 16: 199–208
2. Arnold JE, Wilson BC (1981) Computer processing of perfusion, ventilation and V/Q images to highlight pulmonary embolism. Eur J Nucl Med 6: 209–315
3. Ayers WR, Ward SA, Weihrer AL, Abraham S, Caceres CA (1969a) Description of a computer program for analysis of the forced expiratory spirogram. I. Instrumentation and programming. Comput Biomed Res 2: 207–219
4. Ayers WR, Ward SA, Weihrer AL, Abraham S, Caceres CA (1969b) Description of a computer program for analysis of the forced expiratory spirogramm. II. Validation. Comput Biomed Res 2: 220–228
5. Barnhard HJ, Pierce JA, Joyce WW, Bates JH (1960) Roentgenographic determination of total lung capacity. Am J Med 28: 51