[1] Brigham & Womens Hosp, Ariadne Labs, 401 Pk Dr, Boston, MA 02215 USA
[2] Harvard TH Chan Sch Publ Hlth, 401 Pk Dr, Boston, MA 02215 USA
[3] Brigham & Womens Hosp, Dept Internal Med, Div Gen Med, 75 Francis St, Boston, MA 02115 USA
[4] Costa Rican Social Secur Adm, Dept Qual Assurance, Second Ave 5th & 7th St, San Jose 10105, Costa Rica
[5] Harvard Med Sch, Ctr Primary Care, 25 Shattuck St, Boston, MA 02115 USA
[6] Northwestern Univ, Dept Med Social Sci, Feinberg Sch Med, 420 E Super St, Chicago, IL 60611 USA
[7] Costa Rican Social Secur Adm, Second Ave 5th & 7th St, San Jose 10105, Costa Rica
[8] Univ Texas Austin, Dept Internal Med, Med Sch, 1501 Red River St, Austin, TX 78712 USA
[9] Univ Costa Rica, Sch Publ Hlth, Calle Cruz 26, San Jose, Mercedes, Costa Rica
[10] Brigham & Womens Hosp, Dept Med, Div Global Hlth Equ, 75 Francis St, Boston, MA 02115 USA
[11] Harvard Med Sch, Dept Med, 25 Shattuck St, Boston, MA 02115 USA
[12] Costa Rican Social Secur Adm, Hlth Serv Delivery Strengthening Dept, Second Ave 5th & 7th St, San Jose 10105, Costa Rica
[13] Brown Univ, Dept Hlth Serv Policy & Practice, Sch Publ Hlth, 121 South Main St, Providence, RI 02903 USA