Table 1.

Keyword groups used to create the search strings. Complete search strings are in Supplementary File 1.

Group	String
(1)	words related to phenotypes (eg. “genetic disorder”,
	“facial phenotype”, “Down”)
	AND
(2)	words related to images (eg.“image analysis”, “photography”,
	“facial image”)
	AND
(3)	words related to machine learning (eg. “machine learning”,
	“classification”, “computer aided diagnosis”)