2 ms·
No controlled study was done, so any unexpected confounding factors would invalidate the results. This type of study is nearly pointless when trying to demonstr
by nevinera 12y ago
No controlled study was done, so any unexpected confounding factors would invalidate the results. This type of study is nearly pointless when trying to demonstrate a causal link.
- adwf 12y agoA study without a control is barely a study at all.
- deleted 12y ago[deleted]