000
00282nam a22001217a 4500
008
180216b xxu||||| |||| 00| 0 eng d
041
_a
eng
080
_a
616.34
100
_a
9
101
_a
gas
245
_a
therapeutic gastrointestinal endoscopy
_c
stephen.e.s
942
_2
udc
_c
BK
999
_c
42756
_d
42756