Welcome

This is a Quarto book project based on the textbook “What If?” by Miguel Hernán and James Robins.

The notes are available in multiple formats:

• HTML Book: Navigate using the sidebar for a traditional book reading experience
• RevealJS Slides: Each chapter also generates a presentation format with -slides.html suffix
• PDF Handouts: Each chapter generates a PDF handout with -handout.pdf suffix
• DOCX Documents: Each chapter generates a Microsoft Word document with .docx extension

0.1 About this project

These lecture notes follow the structure and content from What If? by Hernán MA, Robins JM.

0.2 Navigation

Use the sidebar to navigate between chapters. Each chapter is available as: - A traditional HTML page (click the chapter name) - RevealJS slides (add -slides.html to the chapter URL) - PDF handout (add -handout.pdf to the chapter URL) - DOCX document (replace .html with .docx in the chapter URL)