- Diane Keaton Died of Pneumonia, Death Certificate Says The New York Times
- Diane Keaton’s Family Shares Her Cause of Death, Thanks Fans for Their ‘Love and Support’ (Exclusive) People.com
- Richard Gere fondly recalls his late father and ‘gentle’ costar Diane Keaton USA Today
- After Diane Keaton’s pneumonia death, what to know about the respiratory virus Fox News
- Diane Keaton died of pneumonia, her family confirms, thanking fans for ‘love and support’ NBC News
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