CJCP     2005 7 (5):  461-462    ISSN: 1008-8830  CN: 43-1301/R Efficacy of biological organic zinc in the treatment of recurrent respireatory infection in children: experience of 55 cases LI Mei-Rong, Sun-Zhao-Hong, Li-Fei Department of Pediatrics, First People's Hospital of Dandong City, Dandong, Liaoning, China 118000 Received: null  Revised: null  Online: null Supporting info