Computerized spirometry system. From ‘Biomedical Instrumentation and Measurements’, by Cromwell L, Weibell FJ, Pfeiffer EA. Published by Prentice-Hall, 1980, page 228.
Computerized spirometry system. From ‘Biomedical Instrumentation and Measurements’, by Cromwell L, Weibell FJ, Pfeiffer EA. Published by Prentice-Hall, 1980, page 228.