Historical clue formulations

• Prefix with -algia — 2015-04-13
• Prefix with -itis — 2006-12-06
• Doctor's prefix with -ologist — 2004-07-25
• Prefix with -algia — 2001-05-27
• Prefix with -itis — 2000-09-29
• Nerve opening? — 1999-06-13
• Medical prefix — 1995-08-13