Algorithms for Predicting the Probability of Azoospermia from Follicle Stimulating Hormone: Design and Multi-Institutional External Validation oleh Michael B. Tradewell, Walter Cazzaniga, Rodrigo L. Pagani, Rohit Reddy, Luca Boeri, Eliyahu Kresch, Luca A. Morgantini, Emad Ibrahim, Craig Niederberger, Andrea Salonia, Ranjith Ramasamy