Lister Hospital
Coreys Mill Lane
Stevenage
Hertfordshire
SG1 4AB
Website: www.enherts-tr.nhs.uk
Tel: 01438 314333
Queen Elizabeth II Hospital
Howlands
Welwyn Garden City
Hertfordshire
AL7 4HQ
Website: www.newqeii.info
Tel: 01483 314333
Alternatively you can contact the ward or department where you had your test directly.