Table 2. Summary of barriers identified in the systematic review.

Barriers related to individuals	Barriers related to healthcare professionals (HCP)
1. Lack of awareness of personal risk	1. Non-genetic HCPs' lack of awareness of patient risk factors
2. Lack of knowledge and/or awareness of medical history of family members	2. Lack of obtaining adequate and/or accurate family history
3. Lack of knowledge of genetic services	3. Lack of knowledge on genetics and genetic conditions
	4. Lack of awareness of genetic services
	5. Inadequate coordination of referral
	6. Lack of genetics workforce