Authors: F Pozo-Rodriguez; J M Freire-Campo; V Gutierrez-Millet; C Barbosa-Ayúcar; J Diaz de Atauri; P Martín-Escribano Journal: Thorax Date: 1980-05 Impact factor: 9.139
Authors: S K Hong; S H Cho; S K Han; Y S Shim; K Y Kim; Y C Han; J S Han; J S Lee; J K Chi Journal: Korean J Intern Med Date: 1989-01 Impact factor: 2.884