Add punctuation: 2 years ago 1307 xHamster bbccuckolddouble analdouble penetration
A: 2 years ago 13:07 xHamster bbccuckolddouble analdouble penetration

Add punctuation: The primary result was that the more vitamin C that the men had in their blood serum the lower their CRP
A: The primary result was that the more vitamin C that the men had in their blood (serum), the lower their CRP.

Add punctuation: The filters were treated chemically and frozen for later DNA analysis At the second location measurements were made down to a depth of about 300 m
A:
The filters were treated chemically and frozen for later DNA analysis. At the second location measurements were made down to a depth of about 300 m.