TY  - GEN
AU  - Ellis,M
TI  - The evolution of the mastoid operation
SN  - 0035-9157
PY  - 1967///0702
KW  - Europe
KW  - General Surgery
KW  - history
KW  - History, 17th Century
KW  - History, 18th Century
KW  - History, 19th Century
KW  - History, 20th Century
KW  - Humans
KW  - Mastoid
KW  - surgery
N1  - Publication Type: Historical Article; Journal Article
ER  -