MAMLD1 and Penile hypospadias: Furthermore, five HPO terms of the penile hypospadias (HP:0003244), blind vagina (HP:0040314), glandular hypospadias (HP:0000807), penoscrotal hypospadias (HP:0000808), and X-linked recessive inheritance (HP:0001419) were suggested for the three MAMLD1 (mastermind like domain containing 1), MTM1 (myotubularin 1), and MID1 (midline 1) genes that were associated with NBA [see Additional file 2: Fig. S7].