Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
11 without a DOI — not checked. A reference
deposited without a DOI is never matched by title or guessed at; it stays outside the checked
set, and this line discloses that.
On the direction and manifest size of the variations of potential in the human heart and on the influence of the position of the heart on the form of the electrocardiogram
Über die Richtung und die manifeste Grösse der Potentialschwankungen im menschlichen Herzen und über den Einfluss der Herzlage auf die Form des Elektrokardiogramms
Monitoring respiration rate in sleep-disordered breathing patients using chest belts or ECG
The 11 references without a DOI — listed, not checked
no DOI — not checkedForbes, A. Dean, and Eric D. Helfenbein. "Respiration-gated cardiography." U.S. Patent Application 12/293,552, filed March 5, 2007.
no DOI — not checkedForbes, A. Dean, and Eric D. Helfenbein. “Intramyocardial anomalous activity detection by subtracting modeled respiratory effect.” U.S. Patent 6,132,381, issued October 17, 2000.
no DOI — not checkedNon-invasive respiratory movement detection and monitoring of hidden humans using ultra wideband pulse radar
no DOI — not checked10.1016/j.jelectrocard.2014.07.020_bb0125
no DOI — not checkedSensing fabrics for monitoring physiological and biomechanical variables: E-textile solutions
no DOI — not checkedDerivation of respiratory signals from multi-lead ECGs
no DOI — not checkedForbes, A. Dean, and Eric D. Helfenbein. “Apparatus and method for determining respiratory effort from muscle tremor information in ECG signals.” U.S. Patent 5,913,308, issued June 22, 1999.
no DOI — not checkedGoodnature, Don, Eric D. Helfenbein, James M. Lindauer, and Richard D. Pering. “Real-time artifact removal from waveforms using a dynamic filter having a fixed delay.” U.S. Patent 5,511,554, issued April 30, 1996.
no DOI — not checkedPhysiologic auto-control of mechanical respirators
no DOI — not checkedMonitoring respiratory activity in infants—a non-intrusive diaphragm EMG technique
no DOI — not checkedRespiratory tracking using EDR for list-mode binning in cardiac emission tomography: comparison with MRI heart motion measurements
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-07-22 — re-checked daily as this page is visited;
titles and statuses come from Crossref and DataCite and are not part of the signed record
Both snippets point at the live badge image and link back to this page. The
badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.