![](/img/cover-not-exists.png)
Sample size formula with a continuous outcome for unequal group sizes and unequal variances
Hubert J. A. SchoutenVolume:
18
Year:
1999
Language:
english
Pages:
5
DOI:
10.1002/(sici)1097-0258(19990115)18:13.0.co;2-k
File:
PDF, 70 KB
english, 1999