LM*	HY	JC	AG	MJ	ET	XL	EL	JK
Conception and design	✓	✓	✓	✓	✓	✓	✓	✓	✓
Provision of study materials or patients				✓			✓	✓	✓
Statistical expertise		✓	✓
Analysis and interpretation of the data	✓	✓	✓	✓				✓	✓
Drafting of the article	✓	✓	✓	✓	✓	✓	✓	✓	✓
Critical revision of the article for important intellectual content	✓	✓	✓	✓	✓	✓	✓	✓	✓
Final approval of the article	✓	✓	✓	✓	✓	✓	✓	✓	✓
Obtaining of funding								✓	✓

^*

Lindsey MacFarlane: lmacfarlane@partners.org. I take responsibility for the integrity of the work as a whole, from inception to finished article