among the female sexual hormones, the estrogen and progesterone are of significant importance. these hormones are prescribed for the treatment of certain female genital system disorders as well as used in the synthesis of contraceptive drugs. it has been shown that administration of the above hor mones during early pregnancy may produce abortion in early gestational days. in the present investi...

A significant proportion of fetal anomalies are surgically correctable. Their accurate and reliable prenatal diagnosis is of great importance, and will have significant influence on both postnatal and postsurgical outcome. The influence of prenatal diagnosis of simple structural defects will interfere with organ development. In the light of recent achievements, traditional teratology has to be ...

This review of holoprosencephaly provides a mythologic and teratologic distillate of the subject under the following headings: Babylonian tablets; Greek mythology; pictures from the 16th through the 20th Centuries; 19th Century teratology; history of more modern concepts and their terminologies; and ocean-going ships named "Cyclops."

Having in a previous series of communications1 considered in detail the members of the first great division of allantoidoangiopagous twins?those, namely, to which the general name paracephalus has been given?I ought now in logical sequence to take up the study of the acephali, which form the second division; but, as I have not myself been able yet to dissect a specimen of this kind, I shall lea...

Abuse of drugs by pregnant women both in the United States and worldwide has raised many questions regarding the effects of prenatal drug exposure on the developing fetus and subsequent child outcomes. Studies using the neurobehavioral teratology model have been undertaken to determine specific prenatal drug effects on cognitive and behavioral development. Here we summarize the findings of stud...