Significantly Elevated Uterine Artery Doppler Indices and Impaired Subendometrial Perfusion Characterise Infertile Women in a North-Eastern Nigerian Population: A Case-Control Study - Mohammed Lawan Mohammed; Zara Baba Shettima; Maryam Abba Goni; Ibrahim Abba Tijjani; Umar Hassan Umar; Abubakar Farate; Zara Mohammed Bata; Abubakar Garba Farouk (West African Journal of Allied Health Sciences, 2026)