2.3 ROSE
Biopsy specimens were expressed onto labeled glass slides and smearing was performed by an on-site cytotechnologist. Rapid staining was performed using Diff-Quik stain. Cytologic glass slides were then evaluated under light microscopy by the cytotechnologists for immediate interpretation of whether the sample was sufficient for a provisional diagnosis as well as for all later laboratory requirements. A quick feedback was sent back to the bronchoscopist by cytotechnologists. The bronchoscopist terminated or modified the sampling process based on the information. If sufficient specimens were obtained and diagnostic objective had been met from imprint cytology, sampling was stopped, conversely, but otherwise, sampling was continued with the appropriate adjustment.