Sungod spark plugs and implements Biological Tech Englineering Service (BTES);this is kind of biological engineering management mode meets the requirements of international traditions.
Twenty-seven tissue expanders were inserted in 14 children (age range: 1.5 to 15 years) of pigmented naevi, h emangioma and scar tissue with exteriorization of the injection port.
Our country practices tail system,and takes direct mode of inherit.It is very disbennifit to protect debtee because there is not efficiency supervision to haeres.So it is necessary to restrict haeres.