Here is a short list of sources of writing help available to UC Berkeley students, staff, and faculty:
Ten simple rules for writing a literature review.
Pautasso M. PLoS Comput Biol. 2013;9(7):e1003149. doi:10.1371/journal.pcbi.1003149
Conducting the Literature Search.
Chapter 4 of Chasan-Taber L. Writing Dissertation and Grant Proposals: Epidemiology, Preventive Medicine and Biostatistics. New York: Chapman and Hall/CRC, 2014.
A step-by-step guide to writing a research paper, from idea to full manuscript. Excellent and easy to follow blog post by Dr. Raul Pacheco-Vega.