共 66 条
[1]
[Anonymous], 2015, SEN ENQ STEPS 2015 N
[2]
Barber RM, 2017, LANCET, V390, P231, DOI [10.1016/S0140-6736(17)30818-8, 10.1016/s0140-6736(17)30818-8]
[6]
Bertakis KD, 2000, J FAM PRACTICE, V49, P147
[7]
Biccard BM, 2018, LANCET, V391, P1589, DOI [10.1016/S0140-6736(18)30001-1, 10.1016/s0140-6736(18)30001-1]
[8]
Björkman M, 2009, Q J ECON, V124, P735, DOI 10.1162/qjec.2009.124.2.735