Problem
What are ways both of these articles are related in terms of homophilic or heterophilic relationships?
The articals
1) "The social genome of friends and schoolmates in the National Longitudinal Study of Adolescent to Adult Health" by Benjamin W. Domingue Daniel W. Belsky , Jason M. Fletcher and Kathleen Mullan Harris,
2) "The anatomy of friendship: neuroanatomic homophily of the social brain among classroom friends" by Patrick D'Onofrio, Luke J. Norman, Gustavo Sudre, Tonya White and Philip Shaw.