This web site is the focal point for the PIAF study knowledge transfer. The online course is first addressed to partners participating in this multicentric study. Physicians and technologists will be guided through the ultrasound investigation of the fetal aortic isthmus. Paediatricians and neurologists will be trained to assess children’s neurologic development with the Gosselin & Amiel-Tison test. This work was supported by the Canadian Institutes of Health Research. (Funding reference number: 97986).