21. Pneumatic dilation has a better long term effectiveness than botox. 22. Time dilation is caused by differences in either gravity or relative velocity. 23. Histamine causes dilation and increased permeability of capillaries close to the basophil. 24. Sexual intercourse is not an adequate method of performing dilation . 25. Gravitational time dilation has been experimentally measured using atomic clocks on airplanes. 26. Dilation of these vessels greater than 2 mm is called a varicocele.27. Greater pupil dilation is found to be associated with high cognitive load. 28. Haskell was not the first physician to perform intact dilation and extraction. 29. This is Sz .-Nagy's dilation theorem. 30. Neither neovaginoplasty nor vaginal dilation should be performed before puberty.
