The feasibility and histological diagnostic accuracy of novel Menghini needle (EUS Sonopsy CY) for endoscopic ultrasound-guided fine-needle aspiration biopsy of solid pancreatic masses: a prospective crossover study comparing standard biopsy needles - Igarashi, R; Irisawa, A; Bhutani, MS (Gastroenterol Res Pract, 2019)