共 22 条
[1]
Andersson N., 1989, Health Policy and Planning, V4, P197, DOI 10.1093/heapol/4.3.197
[2]
Andersson N, 1989, Salud Publica Mex, V31, P493
[3]
AYALA VMC, 1989, SALUD PUBLICA MEXICO, V31, P735
[4]
BLOCH AB, 1985, PEDIATRICS, P524
[6]
FLORES AV, 1984, SALUD PUBLICA MEXICO, V26, P373
[7]
GOLD R, 1990, MED N AM, P1304
[8]
HASTINGS A, 1987, BRIT MED J, V12, P253
[10]
MCCONNELL W W M, 1984, British Medical Journal, V289, P293