Det kan dog ikke nødvendigvis antages, at kontinuerlig systemisk eksponering af moderdyrene i den (ukendte) følsomme fase af organogenesen er forudsætningen for induktion af teratogene virkninger.
A continuous systemic exposure of the dams during the (unknown) sensitive phase of the organogenesis as a pre-requisite for the induction of teratogenic effects cannot necessarily be assumed.