584. Where serious injury could be caused to the health of the adopted person, whether a minor or of full age, or of any of his close relatives if he is deprived of the information he requires, the court may allow the adopted person to obtain such information.
A close relative of the adopted person may also avail himself of such right if the fact of being deprived of the information he requires could be the cause of serious injury to his health or the health of any of his close relatives.