One difference is that the amount of vitamin B12 in Centrum Silver (25 mcg) is much lower than the amount used in the positive studies (100 and 500 mcg, respectively). Loss of cognitive function is a well-known effect of vitamin B12 deficiency.
Click on the download link. Allow the song to download to your cell phone. Close your web browser and locate the song on your cell phone (usually under sounds, music, mp3s, or multimedia). Select the song to play it.
1 Choose Ringtones. 2  Filter to select the ringtone you want to download. 3  Choose Get It and enter the information that you'll be asked for. 4  Choose Buy to download that ringtone for your phone [source: ATT ].erizon. 1  Press on the Get It Now arrow, which also acts as the right navigational arrow on your handset. 2  The Get It Now browser will open. 3  Scroll down the list using the navigational arrow, until you see Get Tunes & Tones. 4  Press OK. 5  Select 1. Get Ringtones and press OK. 6  Choose 1. Get New App and press OK.