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.
6 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.
The Psychological and Interpersonal Relationship Scales: Assessing Psychological and Relationship Outcomes Associated with Erectile Dysfunction and Its Treatment
Pharmacokinetic Comparison of an Orally Disintegrating Film Formulation With a Film-Coated Tablet Formulation of Sildenafil in Healthy Korean Subjects: A Randomized, Open-Label, Single-Dose, 2-Period Crossover Study
Bioequivalence study of a new sildenafil 100 mg orodispersible film compared to the conventional film-coated 100 mg tablet administered to healthy male volunteers
Nanoemulsions loaded Carbopol® 934 based gel for intranasal delivery of neuroprotective Centella asiatica extract: in–vitro and ex–vivo permeation study
Overview of phosphodiesterase 5 inhibition in erectile dysfunction
The 6 references without a DOI — listed, not checked
no DOI — not checkedA once-daily dose of tadalafil for erectile dysfunction: Compliance and efficacy
no DOI — not checkedFormulation and evaluation of transdermal gel of sildenafil citrate
no DOI — not checkedCenter for Drug Evaluation and Research (CDER) (2018, May 03). Guidance for Industry: Bioanalytical Method Validation, US Food and Drug Administration, Available online: http://www.fda.gov/ucm/groups/fdagov-public/@fdagov-drugs-gen/documents/document/ucm070107.pdf.
no DOI — not checkedWinNonlin, T. (1999). User’s guide (ver. 5.2), Pharsight Corporation.
no DOI — not checkedD’Argenio, D.Z., Schumitzky, A., and Wang, X. (2009). ADAPT 5 user’s guide: pharmacokinetic/pharmacodynamic system analysis software, Biomedical Simulations Resource.
no DOI — not checkedCenter for Drug Evaluation and Research (CDER) (2018, October 02). Cialis® Pharmacological Review, US Food Drug Administration, Available online: https://www.accessdata.fda.gov/drugsatfda_docs/nda/2003/21-368_Cialis_Pharmr.pdf.
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.