aInstitute of Immunobiology and Virology ‘Torlak’, Belgrade, Yugoslavia;
bDepartment of Urology, Doboj District Hospital, Doboj, Bosnia;
cDepartment of Nephrology, Clinical Hospital Centre ‘Zvezdara’, Belgrade, Yugoslavia;
dInstitute of Urology and Nephrology, Clinical Centre of Serbia, Belgrade, Yugoslavia,
and
eBiology Section, Macedonian Academy of Arts and Science, Skopje, Macedonia