sentences:  He was also part of a group that discovered the dangerous threat posed by sickle cell disease to maternal and fetal lives among Africans.In Zaria, the results of the work of a team he led, became the most powerful boost to international advocacy for better maternal and perinatal health in developing countries.Now retired, his life is summed up thus - an obstetrician and gynaecologist, a teacher and trainer, medical academic, university administrator, a sort of social activist, and a cricket and music fan.