. >> to gather, this mother lives in a belgian city. tina has a hereditary muscular disorder and she was worried she may pass it onto her daughter. >> for me, pgd was the only chance i had to have a healthy baby. we did not want the job to have significant elements. when we heard about the screening, we decided to do it. >> this person helped her give birth to a healthy daughter. he is the head of reproductive medicine at the university clinic in brussels. he is also a jesuit and says it is his duty to do everything in his power to prevent suffering. >> all the women we see have a long, painful story. when you have a patient in front of you that has already given birth twice and now has to disabled childre -- two disabled children, of course this woman is going to want a healthy child the third time around, just like anyone else. >> this couple has also been treated but by the doctor. he has a hereditary illness that causes intestinal polyps. although he was not able to conceive a child through normal methods, she is already seven month