{"H1_group":"intervention","H2_group":"intervention","num_linked_pairs_observed":33}
{"H1_group":"intervention","H2_group":"control","num_linked_pairs_observed":4}
{"H1_group":"control","H2_group":"intervention","num_linked_pairs_observed":13}
{"H1_group":"control","H2_group":"control","num_linked_pairs_observed":32}