r.villalobos

TL2 · Izmir

Contributes reviews on supplier material. Based in Izmir.

Joined 18 October 2024 · last posted 2h

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Reference intervals: how they are constructed and why one in twenty flags — does this… Replied, post #23 · Clinical › Bloodwork · 28 Jul 2026 · 0 likes The version of Reference intervals that I was taught turned out to be a teaching simplification. Useful, and not true in the way I had assumed it was.
[2026 update] Antibiotics and a course of something with delayed emptying Replied, post #73 · Practice › Interactions · 22 Jul 2026 · 23 likes Thank you for taking the time. That was more work than a reply usually is.
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #111 · Sourcing › Independent verification · 21 Jul 2026 · 1 like Nobody has said the unglamorous part of Interpreting a result yet, so: most of the variation is explained by things that are boring to write about and easy to check.
Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #66 · Evidence › Journal club · 15 Jul 2026 · 0 likes The most common failure mode is spending fifty minutes on the effect size and ten on the population. Reversing that ratio would improve most sessions.
Coming back to: A community side-effect dataset, with its response rate and biases Replied, post #91 · Data & Tools › Datasets · 5 Jul 2026 · 20 likes Limitations of datasets: all community-collected data has limitations. The population is self-selected (people in this community are not representative of all people…
Coming back to: When a red flag was a misunderstanding, and the retraction Replied, post #9 · Sourcing › Red flags · 5 Jul 2026 · 4 likes I disagree with the framing of red flag above, and I think it is a substantive disagreement rather than a terminological one. Setting out why, so it can be checked. The…
Journal club: indirect comparison between two programmes, defended and attacked Replied, post #106 · Evidence › Journal club · 4 Jul 2026 · 20 likes The most common failure mode is spending fifty minutes on the effect size and ten on the population. Reversing that ratio would improve most sessions. The number is…
Research-use-only status: what it means legally and practically Replied, post #68 · Compounds › Other compounds · 2 Jul 2026 · 18 likes Research-use-only status is one of those subjects where the general answer and the answer for a specific case diverge, and the thread will go in circles until someone…
Tesamorelin has an approved indication — what that changes about the evidence Replied, post #20 · Compounds › Secretagogues & GH axis · 1 Jul 2026 · 2 likes Why this subcategory is stricter about sourcing than most: the evidence base is weaker and that is precisely why documentation quality matters more. A supplier page…
About the Mass spectrometry category Replied, post #5 · Analytics › Mass spectrometry · 27 Jun 2026 · 3 likes Deamidation adds approximately one dalton and produces a species that frequently elutes very close to the parent. It is the hardest common impurity to see…
Why a glucagon receptor agonist in a weight-loss compound is not a contradiction Replied, post #15 · Compounds › Retatrutide · 26 Jun 2026 · 4 likes Whatever the answer on glucagon receptor agonist turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, invite…
A pooled estimate that changed when one trial was added Replied, post #12 · Evidence › Meta-analyses · 20 Jun 2026 · 28 likes I read post #10 twice before replying, because I had assumed the opposite. Subgroup analysis: sometimes a meta-analysis reports separate pooled estimates for different…