Authors: B J Channick; E V Adlin; A D Marks; B S Denenberg; M T McDonough; C S Chakko; J F Spann Journal: N Engl J Med Date: 1981-08-27 Impact factor: 91.245
Authors: G Kahaly; R Erbel; S Mohr-Kahaly; G Zenker; K von Olshausen; U Krause; J Beyer Journal: Dtsch Med Wochenschr Date: 1987-02-13 Impact factor: 0.628