000
00253 a2200109 4500
082
_a
614.06
_b
W89t
245
1
_a
TECHNICAL REPORT SERIES
260
_a
_b
_c
440
_a
World Health Organization Series
_v
No. 253
964
_g
CIRC
997
_a
33400 s C
999
_c
453690
_d
453690