50 UI/mL of penicillin and 50 mg/mL streptomycin Seromed; Seromed Biochrom-Produkte, Wiesbaden, Germany were incorporated as nutrients.
50 UI/mL de penicilina y 50 mg/mL de estreptomicina Seromed; Seromed Biochrom-Produkte, Wiesbaden, Alemania fueron agregados como nutrientes.