If You Had A Twin, But Didn't Realise...
Family Life3 mins ago
No best answer has yet been selected by bricro. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.The period is not 12 years and there is a bit more to it than stated above. Click this link and scroll down to and read LRPG004 and the three versions of LRPG005.