430 _ 0
‡a
Analytical and epidemiological studies
410 2 _
‡a
National Center for Health Statistics (U.S.).
‡t
Vital and health statistics.
‡n
Series 3,
‡p
Analytical and epidemiological studies
430 _ 0
‡a
Vital and health statistics.
‡n
Series 3,
‡p
Analytical & epidemiological studies