Magnetic field detectors from the first commercial magnetocephalography scanner (MEG).
1990s
1990s
1989
1996
1996
1996
1996
1996
1997
1997
1996
1990-1998
1996
1996
1993
1984
1997
1983
1997
1985
1984
c.1998
1995
1995
1995
1987
1998
1998
1995
1984
1986
1996-1998
1983
1994
1997
circa 1983
1986
1990-1991
1997
1987
1994
1993-1995
1983
1990-1997
1986
1985
1994
1984; 1983
1985
1986
1993