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.
DVD video: This is the most common format used to mass-produce movies and can be played universally on any DVD player. You'll usually see a DVD Video logo somewhere on the DVD case. Unless you have a multi-region DVD player, you will only be able to play DVDs with the same region code as your DVD player. Support is not so universal for the various recordable and rewriteable DVD formats, like DVD+RW. CD: Your DVD player can probably also read compact discs (CDs).