TY  - GEN
AU  - Williams E.D
AU  - Siebenmann R.E
AU  - Sobin L.H
TI  - Histological typing of endocrine tumours
T2  - International Histological Classification of Tumours No. 23
SN  - 9241760230
PY  - 1980///
CY  - Geneva
PB  - WHO
ER  -