A test of a new intervention or treatment on people for. detecting. -Tolerability. -Safety. -Efficacy. A Clinical trial is defined as a prospective study. comparing the effect and value of intervention. (s) against a control in human beings.
Most DVD Players support playing DL DVD-R, DVDÂ±R/RW, DVD, CD-R/RW, MP3, JPEG, however different plays have their special features. You need to introduce us what DVD player you have and then we can show you the detailed video formats.
1 If you have it, you can play your DVD on Windows Media player. 2  If you donât have Windows Media Player, or yours is out of date, upgrade to the latest version. 3  Go to the help menu to find a link to the latest upgrade, which is currently version 12.