Hi Dear, An MRI is a series of detailed picture of your brain, as they were at the time the MRI was done. They are valid as long as no other changes occur. Basically, if somebody has an MRI today that is normal, and have a stroke or hernia tomorrow, obviously the result will change (You never know).
Undo an action. Press Ctrl+Z or click (Undo) in the ribbon until you've fixed your mistake. You can't undo some actions, such as clicking commands on the File tab or saving a file. If you can't undo an action, the Undo command is dimmed.
The Uno is a complete USB-to-MIDI solution, equipped with a USB connection to your computer, and a 1-in/1-out 16-channel MIDI connection to your MIDI devices. The Uno works for Windows and Macintosh operating systems. Its single MIDI In and Out connectors make it perfect for connecting a keyboard or controller to your computer quickly and easily. Since it is powered by the USB port, the Uno is convenient and great for portable use.