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Human Lung regional Ventilation Defect Severity measured by Fluorine-19 Gas MRI
An open label study in 250 subjects over five years. We are planning 130 subjects with COPD (varies stages of GOLD I-IV) and 120 normal subjects (non-smokers, ex smokers and current smokers with normal PFT’s). (REF# 37791)

Screening Tests for Susceptibility to Immersion Pulmonary Edema
Healthy volunteers are needed for a research study of the effect of exercise while immersed to the neck in water on cardiac (heart) function. (REF# 19996)

Guidelines for Flying After Diving
Experienced divers are needed for a study to examine flying guidelines after diving. (REF# 11800)

Gene Profiling of Decompression Stress
Divers, or those with previous hyperbaric exposure experience, are needed for a study of changes in gene expression that may indicate decompression stress. (REF# 12945)