Initialize the data sources only once
Initialize the data sources only once

bridgedb/BridgeDb,egonw/BridgeDb,bridgedb/BridgeDb,egonw/BridgeDb,bridgedb/BridgeDb,egonw/BridgeDb,bridgedb/BridgeDb,bridgedb/BridgeDb,egonw/BridgeDb,egonw/BridgeDb