Ferric species equilibrium of the giant extracellular hemoglobin of Glossoscolex paulistus in alkaline medium: HALS hemichrome as a precursor of pentacoordinate species - Moreira, Leonardo Marmo; Poli, Alessandra Lima; Costa Filho, Antonio José da; Imasato, Hidetake (International Journal of Biological Macromolecules, 2008)