Ananaphylactogen,amu tagen,acarcinogenandateratogen [ 9 ] ﹒ TheacuteoralLD50formiceexposedto bovinevitreoushumorswasexceed10g/kg ﹒ TheacuteoraltoxicityofHAwasliste grade [ 10 ] ﹒ TheseexperimentssuggestedthatHAh ﹒. ......