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2 "Validity of peak expiratory flow for assessing reversible airflow obstruction" 48 : 522-529, 2000
3 "The role of the peak flow meter in the diagnosis and management of asthma" 87 : 120-128, 1991
4 "The normal predicted value of peak expiratory flow (PEF) measured by the peak flow meter and correlation between PEF and other ventilatory parameters" 45 : 1000-1011, 1998
5 "The COPD Guidelines Group of the Standards of Care Committee of the BTS" BTS guidelines for the management of chronic obstructive pulmonary disease 52 : 1-28, 1997
6 "Standards for the diagnosis and care of patients with chronic obstructive pulmonary disease" 225-244, 1987
7 "Relationship between peak expiratory flow (PEF) and FEV1" 24 : 39-41, 1997
8 "Relation between FEV1 and peak expiratory flow in patients with chronic airflow obstruction" 43 : 335-336, 1988
9 "Reference values for vital capacity and flow- volume curves from a general population study" 22 : 451-459, 1986
10 "Reference spirometric values using techniques and equipment that meet ATS recommendations" 123 : 659-664, 1981
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