Authors: D H Moore; J Charney; B Kramarsky; E Y Lasfargues; N H Sarkar; M J Brennan; J H Burrows; S M Sirsat; J C Paymaster; A B Vaidya Journal: Nature Date: 1971-02-26 Impact factor: 49.962
Authors: B MacMahon; P Cole; T M Lin; C R Lowe; A P Mirra; B Ravnihar; E J Salber; V G Valaoras; S Yuasa Journal: Bull World Health Organ Date: 1970 Impact factor: 9.408