A randomized controlled cross-over trial and cost analysis comparing endoscopic ultrasound fine needle aspiration and fine needle biopsy* by A. Aziz Aadam, Sachin Wani, Ashley Amick, Janak N. Shah, Yasser M. Bhat, Christopher M. Hamerski, Jason B. Klapman, V. Raman Muthusamy, Rabindra R. Watson, Alfred W. Rademaker, Rajesh N. Keswani, Laurie Keefer, Ananya Das, Srinadh Komanduri

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