Akpan UO, Bassey IE, Nwatu NN, Offor SJ. A comparative study on ABO blood group and fertility hormones in infertile women in Calabar, Southern Nigeria. Ann Med Physiol [Internet]. 2018Jul.1 [cited 2024Dec.21];2(2):19-24. Available from: https://amphysiol.com/index.php/amp/article/view/v2i2.298656