This condition is responsible for 1 percent to 2 percent of all infertility in men.
How many people are affected by congenital bilateral absence of the vas deferens ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by congenital bilateral absence of the vas deferens ? [/INST] \n This condition is responsible for 1 percent to 2 percent of all infertility in men.</s>