Authors: C V Broome; M A Rugh; A A Yada; L Giat; H Giat; J M Zeltner; W R Sanborn; D W Fraser Journal: Bull World Health Organ Date: 1983 Impact factor: 9.408
Authors: J L Coulehan; R H Michaels; K E Williams; D K Lemley; C Q North; T K Welty; K D Rogers Journal: Public Health Rep Date: 1976 Sep-Oct Impact factor: 2.792