OSNA is available for breast samples only and must be booked in advance via email to the laboratory and courier company. Specimens must be brought directly to the Cellular Pathology laboratory at Harbourne House over at the Reading University White Knights Campus via a courier. The samples must be fresh, de skeletonised and transported on ice. A chain of custody form must accompany the specimens and should be received in the laboratory before 4pm. For any further queries, please contact Harvi Atwal extension 7738/7340.