Figure 1: Details of a patient with NOA in a consanguineous family. (a) Family tree of consanguineous Chinese family. I, II, and III refer to the generation of the family; 1 and 2 refer to the individual number of this generation. Arrow refers to the proband. (b) Pathological section of testicular tissue of the patient. Scale bar = 50 μm. NOA: nonobstructive azoospermia.