中国当代儿科杂志     2012 14 (1):  1-6    ISSN: 1008-8830  CN: 43-1301/R 急性下呼吸道感染儿童的维生素D摄入 Karen S Leis, J Dayre McNally, Matthew R Montgomery, Koravangattu Sankaran, Chandima Karunanayake, Alan M Rosenberg Department of Pediatrics, University of Saskatchewan, Saskatoon, Saskatchewan 收稿日期 null  修回日期 null  网络版发布日期 null Supporting info