FACIT-Dyspnea Scale 33 Item Bank Version - Severity: Walking 1/2 Mile
facit-dyspnea scale 33 item bank version - severity: walking 1/2 mile
FACIT-Dyspnea Scale 33 Item Bank Version - Severity: Walking 1/2 Mile
facit-dyspnea scale 33 item bank version - severity: walking 1/2 mile