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.
A: DVDs will play on all existing Blu-ray players (with 1080p upconversion via HDMI in most cases); most current players will play DVD-R/RW recordable discs as well. Some early models lacked the ability to play CDs, but virtually all current models support CD playback (including homemade CD-Rs and CD-RWs).