Description: I need a scientific writer to create a 20–30 page review paper on Nose-to-Brain Drug Delivery, written in Elsevier publication style. The paper should be based only on Elsevier (ScienceDirect) review papers, using around 150 references. Each reference must be properly numbered and mapped to where it is used in the paper (e.g., Section 3.2 – Mechanism of Transport). The paper should include Abstract, Keywords, Introduction, Mechanism, Challenges, Nanocarrier Systems, Pharmacokinetics, Clinical Studies, and Conclusion. Deliverables: Full review manuscript (Word format) Reference list (Elsevier/Vancouver style) Reference mapping table (showing where each paper is cited) Skills Required: Pharmaceutical sciences / nanotechnology / scientific writing / referencing (Elsevier format)