10 biggest U.S. losers for the week.

 10 BIGGEST U.S. LOSERS FOR THE WEEK  (By Percent)  SuperGen          -32.02 LION bioscience   -16.36 Avigen            -13.90 Transgenomic      -11.17 Cygnus            -10.34 Miravant           -9.77 Acusphere          -9.24 Biomira            -8.54 Immune Resp        -7.56 Zonagen …