Dose-dependent in vitro inhibition of rabbit corneal matrix metalloproteinases by an extract of Pothomorphe umbellata after alkali injury - Barros, L. F. M; Barros, Paulo Sergio de Moraes; Röpke, Cristina Dislich; Silva, V. V; Sawada, Tânia Cristina Higashi; Barros, Silvia Berlanga de Moraes; Belfort Júnior, Rubens (Brazilian Journal of Medical and Biological Research, 2007)