Low vitamin D levels in fNHL patients found to be surprisingly strong prognostic indicators for overall survival OS outcomes May 2015 Newsletter p 46 Article 10 p 14 December 2012 Newsletter p 68

What is the correctly punctuated version of this sentence?
Low vitamin D levels in fNHL patients found to be "surprisingly strong" prognostic indicators for overall survival (OS) outcomes, May 2015 Newsletter, p. 4-6; Article #10, p. 14; December 2012 Newsletter, p. 6-8