AU - Schall GL, McDonald HD, Carr LB, Capozzi A TI - XEnon ventilation-perfusion lung scans-reply PT - JOUR DP - 1979 TA - JAMA pages = {25}, VI - 242 IP - 1 AID - 10.1001/jama.1979.03300010016007 [doi] 4100 - http://dx.doi.org/10.1001/jama.1979.03300010016007 SO - JAMA July 6, 1979 242(1):25