Peer Reviewed Clinical Flowchart Haematology Investigating the patient with a raised haemoglobin level John H Gallo Full text: PDF Copied to clipboard Published in A revised guide to the diagnosis of polycythaemia We recommend that this flowchart be read in context of the article in which it was published. To access the article, click the link above. Get full access Subscribe for full access to all articles Already a subscriber? Login here. Advertisement Advertisement Advertisement