(Q48727443)
Statements
1 reference
Parental willingness to enter a child in a controlled vaccine trial (English)
1 reference
Langley JM
1 reference
Halperin SA
1 reference
Mills EL
1 reference
Eastwood B
1 reference
1 February 1998
1 reference
21
1 reference
1
1 reference
12-16
1 reference