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Science Inventory
This is an older EPA product. It may be available from EPA's National Service Center for Environmental Publications (NSCEP) and it should be available from the National Technical Information Service (NTIS).
- Search the NSCEP publications database
- Search the National Technical Information Service online database
Reference:
NORMAL OF RANGE OF DIURNAL CHANGES IN PEAK EXPIRATORY FLOW RATES (EPA600J91167)