31. Northfield may have a slight lead in its third-stage trials, analysts say, but Biopure has shown that a similar product works for animals.
32. Nyakeraka took a slight lead entering the incline, gradually increasing the advantage as the hill steepened.
33. Polls give Owens a slight lead.
34. Polls show the race to be a dead heat or else give Gore a slight lead.
35. Polls show Helms holding a slight lead and most political scientists predict he will win again, although few discount the possibility of an upset.
36. Recent polls have shown Sanchez either with a slight lead or in a dead heat with Morales.
37. Recent polls have shown Republican Gov. George W. Bush with a slight lead over Gore in Louisiana.
38. Riordan-backed candidate Mike Lansing held a slight lead over incumbent George Kiriyama.
39. So far, he holds what several recent polls describe as only a slight lead among all women, and in some surveys he lags among married women.
40. Some have come from Toronto, which still has a slight lead over Vancouver in television and film production, but most are local.