Table 2.

Example PubMed search strategy

Concept	Search string
Deep learning	“deep learning”[MeSH] OR “deep learning”[TIAB] OR “artificial intelligence” [MeSH] OR “artificial intelligence” [TIAB] OR “machine learning”[MeSH] OR “machine learning”[TIAB] OR “convolutional neural network”[MeSH] OR “convolutional neural network”[TIAB] OR “convolutional neural networks”[TIAB]
Facial image analysis	“face detect*” OR “facial detect*” OR “face recogn*” OR “facial recogn*” OR “face extract*” or “facial extract*” OR “face analys*” OR “facial analys*” OR “face dysmorphology” OR “facial dysmorphology” OR “face phenotype*” OR “facial phenotype*” OR “face feature*” OR “facial feature*” OR “face2gene” OR “gestalt theory” OR “face photograph*” OR “facial photograph*” OR “facial expression”