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.
Another major difference lies in the DVD playersâ and Blu ray disc playersâ ability to play both kinds of optical discs. Where a Blu ray disc player can be used to play a DVD, a DVD player does not have the ability to play a Blu ray disc perhaps because the technology came after DVD players were released.