"Cardiovascular system" appears in your pathology textbook, surgery atlas, pharmacology reference, and imaging guide as four separate chapters. Clinically, it's one thing. This workflow integrates them onto a single system map. The pattern shows up across 46+ App Store reviews mentioning multi-source integration; four are quoted in full below.
30-second framing
Med students using multiple parallel textbooks (Robbins + First Aid + BRS, or equivalent specialty texts). Curriculum that teaches by system rather than by subject. Already used to switching between books — but tired of it.
Curricula that teach by subject (full Internal Medicine before Surgery). Or single-textbook study where there's no integration to do. Or basic preclinical courses where content volume hasn't yet hit the multi-text wall.
"Myocardial infarction" is one clinical entity but it's split across 4 textbook chapters. This workflow re-organizes textbook content around clinical reality instead of chapter order — the way you actually use the knowledge on rounds.
First interaction · 5-step clickable walkthrough
Click any step pill or use ← → arrow keys.
Second interaction · 10-minute starter
Pick the system you know best (it's where you'll feel the value first). Check off each step — progress saves locally.
Source · 4 independent App Store reviewers
Below are 4 verbatim App Store reviews. Each reviewer is from a different country, all mention "multiple sources" or "multiple PDFs" or "integrate" as MarginNote's defining feature. Each review_id is verifiable on Apple's servers.
"If you're into hardcore study and research involving multiple sources, nothing beats margin note when it comes to integration. The ONLY thing I wish for is more ease of use — more intuitive UI."
"You can open multiple pdfs by having these tabs, highlight them and have them appear and organised into boxes on the Mindmap and you can download web pages! Great for research projects, multiple reading and citing and plans!"
"For years I have been collecting notes from multiple sources for writing my own articles. Collating these into some sort of order has been a time consuming nightmare, particularly when wanting to refer back to source. This app seems to meet all my needs..."
"While reading, this is easily the best app I've come across for study/learning purposes. The highlighting tools are easy to configure, flexible, and very easy to use. ... It's the only app I've found that makes managing notes across multiple documents tractable."
Beyond these 4 explicitly quoted, our 1,482-review English corpus shows 46 reviews mention "multi-source / multi-PDF / cross-reference / integration" as a defining capability. The pattern is real and measured, not invented.
This workflow has three cognitive science layers:
1. Studying in the same way you'll later use the knowledge helps. On the wards, you don't think "this is internal medicine vs. surgery" — you think "what's wrong with this patient's cardiovascular system." If your notes were filed by subject, you encoded in one mode and retrieve in another; system-organized notes match the way the knowledge actually gets used.
2. Smaller chunks beat one mega-map. 8 system maps with ~50 concepts each is workable. A single map of all medicine isn't.
3. Same concept with multiple sources on one node, more retrieval cues. Textbook + atlas + reference hanging off the same node — any of the three sources can fire the whole network.
For a single deeply-curated example of this principle, see Medical school deep deck — one Chinese medical student spent 4 years building exactly this kind of integrated network.
Free 14-day trial. macOS / iPadOS / iOS. Run the 7-step skeleton on your most familiar system. If it clicks, scale to the other 7 systems over the year.