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John Hansen-Flaschen

researcher

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 28, 2026
Entity authorityQ51194314 ↗
Source-derived summary

John Hansen-Flaschen is an American pulmonologist, critical care physician, and medical educator. He is an emeritus professor of medicine at the Perelman School of Medicine at the University of Pennsylvania. His work has focused on pulmonary and critical care medicine, chronic respiratory failure, and palliative care for patients with advanced lung disease. He served as chief of Penn’s pulmonary and critical care division and was the founding editor-in-chief of the Annals of the American Thoracic Society.

Early life and education

Hansen-Flaschen was born John Flaschen. He earned an A.B. in chemistry from Brown University in 1972 and received his M.D. from the New York University School of Medicine in 1976. He completed his internship, residency, chief residency, and pulmonary medicine fellowship at the Hospital of the University of Pennsylvania.

Career

Hansen-Flaschen joined the faculty of the University of Pennsylvania in 1980 and was appointed professor of medicine before becoming the Paul F. Harron Jr. Family Professor of Medicine in 2012. He became emeritus professor in 2019.

Editorial summary

Begin with the source’s own compact description: “John Hansen-Flaschen” is researcher. The dossier treats that line as a proposition to test through John, Hansen-Flaschen and researcher, not as a finished interpretation.

Editorial reviewStrongest as a route into the people, institutions and dated events that shaped the subject’s public record. The current lead gives the account dated anchors—1972, 1976, 1980, 2012—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, John, Hansen-Flaschen and researcher is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “researcher” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Jul 28, 2026. The linked authority identifier is Q51194314. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1972, 1976, 1980 and 2012.

Critical limits

Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

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  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
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Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “John Hansen-Flaschen”, its source revision and the description used here.
  2. Expand the search: follow John Hansen-Flaschen primary sources, John Hansen-Flaschen archive and John research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from “John Hansen-Flaschen” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.