Join a Clinical Research Study for Severe Asthma Are you having a hard time controlling your asthma? Consider this clinical research trial for those diagnosed with asthma 6 or more months ago. TPMG Clinical Research Division - Williamsburg - (757) 707-3503 or clinicaltrials@tpmgpc.com Join a Clinical Research Study for Severe Asthma Are you having a hard time controlling your asthma? Consider this clinical research trial for those diagnosed with asthma 6 or more months ago. TPMG Clinical Research Division - Williamsburg - (757) 707-3503 or clinicaltrials@tpmgpc.com