Documents Savoirs Weak association of anti-sperm antibodies and strong association of familial cryptorchidism/infertility with HLA-DRB1polymorphisms in prepubertal Ukrainian boys Kurpisz Maciej, Nakonechnyy Andriy, Niepieklo-Miniewska Wanda, Havrylyuk Anna, Kamieniczna Marzena, Nowakowska Beata, Chopyak Valentyna, Kusnierczyk, Kusnierczyk Piotr