The body and the implantable magnet are positioned such that the body is shifted to one of the first position and the second position as {HEAD ~ a function} of the external magnetic field resulting in {TAIL ~ a magnetic force} between the magnet and the magnetically soft body 
The body and the implantable magnet are positioned such that the body is shifted to one of the first position and the second position as { HEAD ~ a function } of the external magnetic field resulting in { TAIL ~ a magnetic force } between the magnet and the magnetically soft body
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH