Negative controls with α-PHP or 4F-α-PVP in KHB without hepatocytes, and with KHB and hepatocytes without the medicines have been incubated at the same time. Each individual incubation was done at the time as a result of substantial cost of pooled human hepatocytes, but good and unfavorable controls were included https://4f-php25910.bloggerswise.com/37038675/getting-my-4f-php-to-work