Fig. 3From: Novel bi-allelic MSH4 variants causes meiotic arrest and non-obstructive azoospermiaH&E staining of cross-sections in NOA-affected patients and a patient with OA as positive control. A H&E staining of cross-sections of testicular biopsy from the patient P9359 (A), P9517(B), the P9540 (C), P21504 (D) and a patient with OA as the positive control (E). Black triangles indicate the spermatocytes in the testis. Scale bars = 50 μmBack to article page