[Shortly about cohort studies].
Ludvigsson
Jonas F
JF
Barnkliniken, Universitetssjukhuset Orebro. jonasludvigsson@yahoo.com
D015331:Cohort Studies; D015986:Confounding Factors, Epidemiologic; D003627:Data Interpretation, Statistical; D006801:Humans; D012044:Regression Analysis; D012307:Risk Factors