Purification of f (ab')2 anti-snake venom by caprylic acid: a fast method to obtaining igg fragments with high neutralization activity, purity and yeld - Santos, Maria Cristina dos; Lima, Maria Regina D'Império; Furtado, G. C.; Coletto, G. M. D. D.; Kipnis, Thereza Liberman; Silva, Wilmar Dias da (Toxicon, 1989)