 During a routine customs check on Chinese swimmer Yuan Yuan's luggage, enough human growth hormone was discovered to supply the entire women's swimming team for the duration of the championships.Only Yuan was sanctioned for the incident, with speculation that this was connected to the nomination of Juan Antonio Samaranch by China for the Nobel Peace Prize in 1993.Tests in Perth also found the presence of the banned diuretic masking agent triamterine in the urine of four swimmers, Wang Luna, Yi Zhang, Huijue Cai and Wei Wang.