Percentage of medical laboratory assistants to medical laboratory scientific officers for each of the main disciplines within pathology:(A) biochemistry, (B) haematology, (C) microbiology, and (D) histology. Percentage of medical laboratory assistants to medical laboratory scientific officers for each of the main disciplines within pathology:(A) biochemistry, (B) haematology, (C) microbiology, and (D) histology. Each bar represents a department. M Galloway, and L Nadin J Clin Pathol 2001;54:590-597 Copyright © by the BMJ Publishing Group Ltd & Association of Clinical Pathologists. All rights reserved.