ORELL, S. R. The thyroid. Fine needle biopsy and cytological diagnosis of thyroid lesions. 1997
ORELL, S. R. Manual and atlas of fine aspiration cytology. 1999
甲状腺外科検討会編. 甲状腺取り扱い規約. 1996
The Papanicolaou Society of Cytopathology. Guidelines of the Papanicolaou Society of Cytopathology for the examination of fine-needle aspiration specimens from thyroid nodules. Diagn Cytopathol. 1996, 15, 84-89