Costo beneficio de la atencion prenatal en 4 delegaciones del Instituto Mexicano del Seguro Social
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| Format: | Tesis de maestría |
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MX
1987
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| Online Access: | https://hdl.handle.net/20.500.14330/TES01000053584 http://132.248.9.195/pmig2018/0053584/Index.html |