Sildenafil use in patients with nutcracker oesophagus hypertensive peristalsis

this topic is a therapeutic review on the use of sildenafil in patients with nutcracker oesophagus. I expect a thorough research to be done on this although i have attached extra articles that i want the writer to critically analyse and review. I want the reference to be cited inthe text appropriately with VANCOUVER STYLE REFERENCE and also i want the essay to have vancouver reference