Historical clue formulations

• Lab-assisted, after "in" — 2019-03-10
• In ___ fertilization — 2013-01-14
• In ___ fertilization — 2011-04-13
• Not natural, in a way, after "in" — 2009-10-29
• Artificial, after "in" — 2003-08-10
• In ___ fertilization — 2000-09-12
• In _____ (from a lab) — 1995-04-15