experiments on wistar rats were made to study the effects of nicotine administered in doses of 0.4 , 1.5 , and 5 mg/kg ( 1/70 , 1/20 and 1/5 of the ld50 ) on the functional state of the mother 's body and embryogenesis under exposure throughout the entire pregnancy .
C0028040
nicotine
C0032961
pregnancy