1 Exhibit 21 Subsidiaries List Percent Name State of Incorporation Ownership - ---- ---------------------- --------- MICA CAL I, INC. California 100 MICA CAL II, INC. California 100 MICA CAL III, INC. California 100 MICA CAL IV, INC. California 100 MICA CAL VII, INC. California 100 MICA CAL X, INC. California 100 MICA FLO I, INC. California 100 MICA OR I, INC. Oregon 100 MICA PACIFIC, INC. California 100 MICA IMAGING, INC. Illinois 100 AFFILIATED MEDICAL IMAGING California 100 NETWORK, INC.