1. H. M. Nizami:
Physiology Department, University of Karachi, Karachi, Pakistan
2. Hilal A. Shaikh:
Physiology Department, University of Karachi, Karachi, Pakistan
3. F. Nizami:
Pakistan Medical Research Centre, Jinnah Postgraduate Medical Centre, Karachi, Pakistan
4. M. A. Siddiqi:
Pakistan Medical Research Centre, Jinnah Postgraduate Medical Centre, Karachi, Pakistan