(Q67838258)
Statements
Outbreaks of paralytic poliomyelitis and polio surveillance in Shandong province of China (English)
Y. Chiba
A. Xu
L. Li
G. Liu
T. Takezaki
D. Urabe
T. Yamamoto
R. Minami
A. Hagiwara
1 October 1992
1 reference
1 reference
1 reference
1 reference