TY - GEN AU - Yang,Hua AU - Zhao,Yue-Yang TI - Variations of author origins in World Journal of Gastroenterology during 2001-2007 SN - 1007-9327 PY - 2008///0815 KW - Authorship KW - Bibliometrics KW - Gastroenterology KW - statistics & numerical data KW - Humans KW - International Cooperation KW - MEDLINE KW - Periodicals as Topic KW - Residence Characteristics KW - Time Factors N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.3748/wjg.14.3108 ER -