Authors: T Haahtela; M Järvinen; T Kava; K Kiviranta; S Koskinen; K Lehtonen; K Nikander; T Persson; K Reinikainen; O Selroos Journal: N Engl J Med Date: 1991-08-08 Impact factor: 91.245
Authors: M R Sears; D R Taylor; C G Print; D C Lake; Q Q Li; E M Flannery; D M Yates; M K Lucas; G P Herbison Journal: Lancet Date: 1990-12-08 Impact factor: 79.321