hepatic porphyria 24 animal experiment 20 rat 18 hexachlorobenzene 16 nonhuman 16 Hexachlorobenzene 14 Rats 14 animal model 14 article 14 Animal 12 Support, Non-U.S. Gov't 12 female 12 Female 10 Liver 10 Porphyrins 10 porphyrin 10 Carboxy-Lyases 8 Humans 8 Porphyria 8 Porphyrias, Hepatic 8 animal cell 8 genetics 8 heme 8 human 8 metabolism 8 oral drug administration 8 5 aminolevulinate synthase 6 5-Aminolevulinate Synthetase 6 Argentina 6 Chlorobenzenes 6