Table 1. The detailed basic culture medium component list.

components	concentration	manufactures' information
LG-DMEM	/	Gibco BRL, Gaithersburg, MD, USA
fetal bovine serum	volume fraction 10%	Gibco BRL, Gaithersburg, MD, USA
penicillin	100 U/ml	AMRESCO LLC, Solon, OH, USA
streptomycin	100 μg/ml	AMRESCO LLC, Solon, OH, USA