With what accuracy it is possible to define or determine a duration of gestation if it is a question, napri...

[Yana]

With what accuracy it is possible to define or determine a duration of gestation if it is a question, for example, about 2 week term or term of 5 weeks?

[Pasenjuk A.M.]

At US opredeljaets the duration of gestation to within one day but often is defined or determined term from conception, which less obstetric on two weeks