In 2016, the World Journal of Clinical Pediatrics (WJCP) has published the 4^th issue which containing 7 articles contributed by scientists worldwide. Among these comprehensive articles are (1) “Packed red blood cell transfusions as a risk factor for parenteral nutrition associated liver disease in premature infants”, an Original Article by Simon S Rabinowitz, MD, PhD, FAAP, Professor, et al from the Department of Pediatrics, Children’s Hospital at Downstate, United States; and (2) “Zinc supplementation as an adjunct to standard therapy in childhood nephrotic syndrome - a systematic review”, a Systematic Reviews by Rashmi Ranjan Das, MD, et al from Department of Pediatrics, All India Institute of Medical Sciences, India, etc. We invite you to peruse all 7 articles in this issue, as they present the latest research progress/findings and provide insightful comments in pediatrics that will guide basic research and clinical practice in these fields.

This journal is an open-access journal which allows free immediate access to all full-text articles. For details, please visit: Volume 5, Issue 4, November 8, 2016.

Figure 1 The cover of the issue. Editorial Board Member of World Journal of Clinical Pediatrics, Consolato M Sergi, FRCP(C), MD, PhD, Professor, Department of Lab Medicine and Pathology, University of Alberta, Alberta T6G 2B7, Canada

The WJCP is a leading academic journal devoted to reporting the latest, cutting-edge research progress and findings of basic research and clinical practice in the field of pediatrics. It was launched on June 8, 2012 and is published trimonthly (4 issues annually) by BPG, the world's leading professional clinical medical journal publishing company.

We encourage pediatrists worldwide to submit manuscripts to the WJCP describing their original basic or clinical research findings that are of high academic value and which report new diagnostic techniques or summarize their treatment experiences.

We invited the readers to download and read the E-Journal of this issue, at: http://www.wjgnet.com/2219-2808/e-journal.htm.