Development of a bioassay to quantify the ricin toxin content of castor bean (Ricinus communis L.) seeds - doi: 10.4025/actasciagron.v34i4.11284. (2011). Acta Scientiarum. Agronomy, 34(4), 397-402. https://doi.org/10.4025/actasciagron.v34i4.11284