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References
1.
Lasagna
L.
The Controlled Clinical Trial: Theory and Practice , J. Chronic Dis. , 1 :353 , 1955 .
2.
Shepard
D.S.
and
Zeckhauser
R.J.
Long-term interventions to improve survival in mixed populations , J Chronic Dis. , 33 :413 , 1980 .
3.
Taves
D.R.
minimization: A new method of assigning patients to treatment and control groups , Clin. Pharmacol. Ther. , 15 :443 , 1974 .
4.
Burkhardt
R.
and
Kienle
G.
Controlled clinical trials and medical ethics . Lancet , 2 :1356 , 1978 .