seventy-nine sprague-dawley derived primimparous rats were injected subcutaneously throughout pregnancy and the nursing period with either ( 1 ) 30 mg/kg of pure nicotine , ( 2 ) 5.0 mg/kg methamphetamine hcl , ( 3 ) saline vehicle , or , ( 4 ) non-injected .
C0032961
pregnancy
C0028040
nicotine