Related Clues:

• Things to be screened for: Abbr.
• 'Infections' inside this puzzle's theme entries
• Batters' nos.
• Problems that may result from screwing studs without using some kind of barrier device: Abbr.
• Agreed-on guidelines: Abbr.
• Bed intruders?
• They're normal: Abbr.
• Many statistics: Abbr.
• Summary stats.
• Hits-per-AB stats
• Miles per gal., points per game, etc.
• Some stock-mkt. stats
• Regular things: Abbr.
• Fed. agencies may issue them
• Regular set: Abbr.