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.
Compressed audio files are supported by many modern CD players as well as DVD players. Disc players are capable of playing compressed formats, take for instance MP3, in which is the most commonly used format, and other formats such as Ogg Vorbis and the proprietary Windows Media Audio and ATRAC are also played as well.