CJCP     2018 20 (2):  146-153    ISSN: 1008-8830  CN: 43-1301/R Effect of vitamin A as an adjuvant therapy for pneumonia in children: a Meta analysis HU Nan, LI Qu-Bei, ZOU Shan-Ye Department of Pneumology, Children's Hospital of Chongqing Medical University/Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders/Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China Received: 2017-09-08  Revised: 2017-12-25  Online: null Supporting info