0001169232-05-002465 SC 13G 1 20050505 20050505 BARRY KUROKAWA DAVID B. MUSKET PROMED ASSET MANAGEMENT, L.L.C. PROMED OFFSHORE FUND, LTD. PROMED PARTNERS II, L.P. PROMED PARTNERS, L.P. AEROGEN INC 0001039160 3841 330488580 DE 1231 SC 13G 34 005-60561 05801354 2071 STIERLIN COURT MOUNTAIN VIEW CA 94043 650 864-7300 2071 STIERLIN COURT MOUNTAIN VIEW CA 94043 PROMED MANAGEMENT INC 0001101088 043306892 MA SC 13G C/O MUSKET RESEARCH ASSOCIATES INC 125 CAMBRIDGEPARK DRIVE CAMBRIDGE MA 02140 PROMED MANAGEMENT L L C 19991215 SC 13G 1 d63692_sc13g.txt SCHEDULE 13G