Measurement of peak expiratory flow rate with a whistle.
D001249:Asthma / Q000175:diagnosis; D001991:Bronchitis / Q000175:diagnosis; D011656:Pulmonary Emphysema / Q000175:diagnosis; D012129:Respiratory Function Tests / Q000295:instrumentation*
Am Rev Respir Dis. 1963 Apr;87:529-37
13931127
Br Med J. 1959 Nov 21;2(5159):1041-6
13846051
Lancet. 1963 Nov 30;2(7318):1146-7
14072917