Upload date
All time
Last hour
Today
This week
This month
This year
Type
All
Video
Channel
Playlist
Movie
Duration
Short (< 4 minutes)
Medium (4-20 minutes)
Long (> 20 minutes)
Sort by
Relevance
Rating
View count
Features
HD
Subtitles/CC
Creative Commons
3D
Live
4K
360°
VR180
HDR
906,054 results
Watch this whiteboard tutorial describing confounding bias, its impact on epidemiologic studies, and approaches to detect it in ...
55,813 views
7 years ago
Okay so this video is about confounding and what is confounding the easiest way to explain it is to give you an example so here ...
198,075 views
10 years ago