Historical clue formulations

• Relating to part of the lung — 2019-03-23
• Lung-related — 2017-07-20
• Kind of pneumonia — 2009-11-28
• ___ pneumonia — 2005-08-14
• Like the lungs — 2003-01-05
• Kind of pneumonia — 2001-08-24
• Pertaining to the lungs, e.g. — 2000-07-22