1996 |
1995 |
1994 |
1993 |
1992 |
(2) A polio vaccine by mouth (pink drops) or a polio shot?
(2) A polio vaccine by mouth (pink drops) or a polio shot?
b. How many additional polio vaccines has -- received?
(2) A polio vaccine by mouth (pink drops) or a polio shot?
Polio (Drops or shots)