EPA:10.1674/0003-0031-161.2.243 EPA:10.1674/0003-0031(1998)139[0201:WHATCG]2.0.CO;2 EPA:10.1674/0003-0031(1999)142[0281:DOARTH]2.0.CO;2 EPA:10.1674/0003-0031(2000)143[0226:TCOMTA]2.0.CO;2 EPA:10.1674/0003-0031(2000)143[0250:ZMDPPC]2.0.CO;2 EPA:10.1674/0003-0031(2001)145[0419:EOVCBS]2.0.CO;2 EPA:10.1674/0003-0031(2001)146[0223:VLATVI]2.0.CO;2 EPA:10.1674/0003-0031(2004)152[0255:DCOERC]2.0.CO;2 EPA:10.1674/0003-0031(2005)154[0240:PDOHMR]2.0.CO;2