[ ]

/ 1,5

:

:
?25, "-" -, 1

.276-20-84

.., .30

: 8.00 21.00

: 18,30,77 ."","."

18,89, .9,12,20 ."."

/ 1,5 ?25, "-" -, 1

?25, "-" -, 1 / 1,5

?25, "-" -, 1 :
:
American Journal of Epidemiology, () , ...

:
...






 Copyright © RIN 2002-

*