Authors: M S Pollack; D Maurer; L S Levine; M I New; S Pang; M Duchon; R P Owens; I R Merkatz; B M Nitowsky; G Sachs; B Dupont Journal: Lancet Date: 1979-05-26 Impact factor: 79.321
Authors: N E Simpson; L Dallaire; J R Miller; L Siminovich; J L Hamerton; J Miller; C McKeen Journal: Can Med Assoc J Date: 1976-10-23 Impact factor: 8.262