(Q38486438)
Statements
1 reference
Poliomyelitis control by annual immunization campaigns with oral polio-virus vaccine in a rural area of India (English)
1 reference
Kumar R
1 reference
Kumar V
1 reference
1 January 1991
1 reference
1 reference
43
1 reference
1-2
1 reference
215-219
1 reference
Identifiers
1 reference