Authors: P Steinbach; W N Adkins; H Caspar; K W Dumars; J Gebauer; E F Gilbert; T Grimm; M Habedank; I Hansmann; J Herrmann; E G Kaveggia; U Langenbeck; L F Meisner; T M Najafzadeh; J M Opitz; C G Palmer; H H Peters; W Scholz; A S Tavares; C Wiedeking Journal: Am J Med Genet Date: 1981