1. Thin-needle aspiration biopsy;Frable,1983
2. Principles of aspiration biopsy: Techniques of aspiration and smear preparation;Ljung,1992
3. Fine Needle Aspiration of Palpable Masses;Stanley,1993
4. The Art and Science of Cytopathology;DeMay,1996
5. Fine Needle Aspiration of Biopsy of the Head and Neck;Powers,1996