Planning Epidemiologic Research in Anticipation of Future Evaluations
Keyword(s):
1999 ◽
Vol 45
(4, Part 2 of 2)
◽
pp. 105A-105A
Keyword(s):
1988 ◽
Vol 128
(4)
◽
pp. 884-947
1968 ◽
Vol 76
(6)
◽
pp. 1350-1356
◽
Keyword(s):
2008 ◽
Vol 168
(12)
◽
pp. 1444-1451
◽