EXHIBIT A [ADDITIONAL SIGNATURE PAGE TO JOINT FILING AGREEMENT] AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G The undersigned hereby agree as follows: (1) Each of them is individually eligible to use the Schedule 13G to which this Exhibit is...Joint Filing Agreement • March 12th, 2007 • Vector Later Stage Equity Fund Ii Lp • Pharmaceutical preparations
EXHIBIT A [ADDITIONAL SIGNATURE PAGE TO JOINT FILING AGREEMENT] AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G The undersigned hereby agree as follows: (1) Each of them is individually eligible to use the Schedule 13G to which this Exhibit is...Joint Filing Agreement • February 14th, 2005 • Vector Later Stage Equity Fund Ii Lp • Pharmaceutical preparations
EXHIBIT A [ADDITIONAL SIGNATURE PAGE TO JOINT FILING AGREEMENT] AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G The undersigned hereby agree as follows: (1) Each of them is individually eligible to use the Schedule 13G to which this Exhibit is...Joint Filing Agreement • February 14th, 2001 • Vector Later Stage Equity Fund Ii Lp • Pharmaceutical preparations
