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Notes on building Phở and sourced lessons. The rule: real evidence, no fabricated sources.
How to read common tests: CBC, liver and kidney function, blood sugar, lipids, electrolytes, blood gas, ECG and more. Every value is cited to the medical literature.
19 articlesHonest comparisons of AI tools for research and clinical work: what each tool does best, when to choose which, and where Phở Chat fits. Every competitor claim carries a verification date.
12 articlesPractical guides for researchers: searching the literature, managing citations, appraising evidence quality, and analyzing research data.
4 articlesSourced comparisons with prices from each vendor’s own page. Last updated 4 November 2026.
Seven research connectors for Claude, ChatGPT and other AI assistants, compared on what each one can actually do: Scite, Elicit, PubMed, alphaXiv, bioRxiv, ClinicalTrials.gov and Phở Research Tools. Tools checked 4 November 2026.
The Phở team
Read more →AI tools for each stage of a systematic review: search, screening, extraction and reporting. Published prices and limits for Elicit, Covidence, Rayyan, DistillerSR, ASReview and Phở Chat, each linked to its source. Last checked 29 October 2026.
The Phở team
Read more →Seven Elicit alternatives for literature search and systematic reviews, compared on what they do best, published prices and limits. Every competitor fact links to its source. Last checked 29 October 2026.
The Phở team
Read more →Phở Chat, Consensus and SciSpace compared side by side: what each does best, paper coverage, published prices and limits. Competitor facts link to their sources. Last checked 29 October 2026.
The Phở team
Read more →What a positive HBsAg means, and how to read Anti-HBs, Anti-HBc, and HBeAg. A guide to interpreting hepatitis B serology results, with cited sources.
Phở Team
Read more →What a 25-OH vitamin D test measures, the ng/mL and nmol/L units, and why the "sufficient" threshold is debated. How to read the result, with cited sources.
Phở Team
Read more →BYOK (bring your own API key) explained: how it works, what it costs versus a subscription, what it cannot cover, and how to judge if an app handles keys safely.
The Phở team
Read more →A ChatGPT alternative for literature and clinical work: why assistants fabricate references, what retrieval-grounded tools do differently, and how to pick one.
The Phở team
Read more →A Claude alternative comparison for research and clinical work: where Claude is strong, where a citation-grounded tool fits better, and how BYOK changes the cost.
The Phở team
Read more →Claude vs ChatGPT for literature and clinical work: where each is stronger, why neither guarantees real citations, and how your own API key lets you use both.
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Read more →Five Gemini models read the same 162 scientific papers on one criteria set. The model costing 5.6x more lost on every metric.
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Read more →12-lead ECG placement explained: the exact anatomical position of V1 to V6 and the four limb electrodes, the order to place them in, and what the evidence says happens when they are off.
Phở Team
Read more →How to read an ANA test result: what the titer means, why 1:160 matters, how many healthy people test positive, and what staining patterns suggest. Every value cited.
Phở Team
Read more →How to read an IgE test result: what total and specific IgE measure, why a positive result means sensitization rather than clinical allergy, and what the sources do not state.
Phở Team
Read more →How to read rheumatoid factor and anti-CCP results: what each test measures, their sensitivity and specificity, why a positive RF is not a diagnosis. Every value cited.
Phở Team
Read more →What beta-hCG is, how qualitative and quantitative tests differ, and why levels are read by trend and clinical context, not one cutoff. Educational and cited.
Phở Team
Read more →Learn what ferritin is, normal ferritin ranges by sex, what low and high values suggest, and why inflammation raises it. Cited from StatPearls; ranges vary by lab.
Phở Team
Read more →What CEA and PSA tumor markers are, their reference ranges, and why an elevated value is not a cancer diagnosis. How to read a result, with cited StatPearls sources.
Phở Team
Read more →What serum uric acid is, what a normal level looks like, and how hyperuricemia relates to gout. A step-by-step guide to reading results, cited to StatPearls.
Phở Team
Read more →Learn how to analyze research data step by step: pick the right statistical test, check assumptions, and report results, with or without SPSS.
Phở Team
Read more →Learn how to appraise evidence quality with GRADE and systematic review screening, from framing your question to grading certainty of evidence.
Phở Team
Read more →Learn how to manage references and citations with EndNote, Mendeley, and Zotero. A step-by-step guide for researchers to keep sources organized.
Phở Team
Read more →Learn basic ECG (EKG) interpretation in 8 systematic steps: rate, rhythm, axis, P wave, PR, QRS, ST-T, QT. Includes a normal-values table with sources.
Phở Team
Read more →A calm, cited guide to reading a CBC. Learn complete blood count normal values and how to interpret CBC results for WBC, hemoglobin, platelets, and MCV.
Phở Team
Read more →How to read a lipid panel: the standard normal cholesterol, LDL, HDL, and triglyceride ranges per NCEP ATP III, in one clear reference table.
Phở Team
Read more →Learn how to read a urinalysis step by step: the dipstick, normal specific gravity, urine pH, and standard reference categories that vary by lab.
Phở Team
Read more →Learn how to read an arterial blood gas step by step: normal pH, PaCO2, HCO3, and PaO2 ranges plus a simple acid-base approach.
Phở Team
Read more →Learn how to read an electrolyte panel: normal sodium, potassium, and magnesium ranges explained. Reference ranges vary by lab.
Phở Team
Read more →Learn to read HbA1c and blood sugar results, including the HbA1c diabetes range and normal fasting glucose, with thresholds cited to standard criteria.
Phở Team
Read more →Learn how to read a CRP result: what normal CRP means, why it signals inflammation, and how hs-CRP maps to cardiovascular risk. Ranges vary by lab.
Phở Team
Read more →Learn how to read kidney function tests: the eGFR normal range, the KDIGO CKD stages, and why serum creatinine varies by age and sex.
Phở Team
Read more →Learn how to read liver function tests: normal ALT AST levels, elevated liver enzymes, and LFT interpretation for hepatocellular vs cholestatic patterns.
Phở Team
Read more →Learn how to read PT and INR: the normal INR range, what prothrombin time means, and why reference ranges vary by lab.
Phở Team
Read more →How to read thyroid function tests: the normal TSH range, high vs low TSH, and why T4 and T3 stay qualitative. Educational and cited.
Phở Team
Read more →Learn how to search scientific literature using PubMed, Google Scholar, MeSH, and Boolean operators to find high-quality research fast.
Phở Team
Read more →Looking for a Consensus alternative? How each tool answers scientific questions, citation reliability, USD pricing and BYOK. Prices checked October 2026.
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Read more →Looking for an Elicit alternative? Elicit vs Phở Chat for systematic reviews and review writing: features, USD pricing, BYOK. Prices checked October 2026.
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Read more →OpenEvidence requires a US NPI and left the EU/UK. An alternative for clinicians elsewhere: evidence-tiered answers, cite-or-abstain, no ads. Updated November 2026.
The Phở team
Read more →Looking for a SciSpace alternative? An honest comparison: features, credits vs flat pricing, BYOK, and when to pick each tool. Rechecked November 2026.
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Read more →Looking for an Undermind alternative? Agentic deep search vs an all-in-one research workspace: coverage, USD pricing, BYOK. Phở features updated November 2026.
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Read more →Measured evidence: language models fabricate citations at scale, and fail nearly half the time when retrieving medical literature. Here is how Phở does it differently.
The Phở team
Read more →Why Phở opened a home for research, case studies, and build-in-public notes. And the principle throughout: no fabricated sources.
The Phở team
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