Type and frequency of hemoglobinopathies, diagnosed in the area of Karachi, in Pakistan oleh Shaista Shabbir, Muhammad Nadeem, Abdul Sattar, Iffat Ara, Saqib Ansari, Tassneem Farzana, Mehwish Taj, Munira Borhany, Saima Manzir, Uzma Zaidi, Jawad Hassan, Arshi Naz, Tahir Shamsi