John E. Heffner

Pulmonary Medicine
5050 NE Hoyt St Ste 540
Portland, OR 97213

Last Updated: 09/26/2026

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Found 19 publications

More pearls afoot.

The story of oxygen.

Obesity and primary graft dysfunction: weighing the evidence.

Showing 1-12 of 19

Last Updated: 09/26/2026