Historical clue formulations

• Heartbeat tests, in brief — 2026-02-04
• Heart charts, in brief — 2022-06-19
• Heart tests, for short — 2015-10-19
• Ticker tests, for short — 2011-12-21
• Beat reporters?: Abbr. — 2011-07-09
• Heart lines: Abbr. — 2009-08-30
• Ticker tapes? — 2003-08-17
• Ticker tapes?: Abbr. — 2002-04-07
• E.R. helps — 1998-07-15
• Ticker tapes? — 1995-05-08