21.   Laparotomy was carried out under ether anesthesia and cannulation of the bile duct was performed for continuous bile collection.

22.   Data are expressed as mean ANOVA, a bilateral paired t test and linear correlation coefficients using X-Y pairs were performed for statistical analysis.

23.   Scoring was performed for each cell along the crypt column to a point immediately beyond the proliferative zone where crypt continuity was lost.

24.   A negative control, in which the primary antibody was omitted, was performed for all sections.

25.   One of the most demanding things for this choir is the physical stamina required to perform for an hour.

26.   In a robust defence of the sector, Mr Scott said it performed outstandingly for its clients in Scotland and throughout the world.

27.   The Soma Samurai, Japanese Warriors on horseback, performed for the first time outside Japan, with odd man out Michael Jay.

28.   Although she was rarely overtly political, Smith got her start by performing for the troops during World War I.

29.   Although it looks like some sort of alien weapon, it is surprisingly comfortable and performs well for most racing games.

30.   Although performing for an international audience might seem nerve-racking for two young girls, Vanitey shrugs it off like a true professional.