GAMMA BIOLOGICALS INC <GAMA.O> 4TH QTR MARCH 31 Shr profit four cts vs loss 47 cts Net profit 209,000 vs loss 2,164,000 Sales 4,849,000 vs 3,682,000 Year Shr loss 10 cts vs loss 52 cts Net loss 451,000 vs loss 2,378,000 Sales 18.0 mln vs 15.8 mln