Data Show How Electronics Mix With Medical Devices

This article by Nicholas Bakalar gives details on how electronic devices may effect the performance of medical devices. It goes into detail about some cases that were experimented with, like a cell phone ringing next to some medical equiptment or a heart pacemaker stopping because of antitheft devices at a large retail store. The research on this has been very limited because cases where medical equiptment has failed because of electronic interaction is very rare and hard to prove.
I think that this can be related to magnetism because when electric current is put through a wire, a magnetic field is created. The magnetic field of one electrical device may effect another device and cause it to malfunction. We all know what happens when you put a magnet next to a laptop, even though I've never seen someone crazy enough to do it. So two electronical devices may interfear with each other if one is generating a large enough magnetic field through the current in it's circuit boards to effect the other electronical device.

Link to original article.