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Un nuevo biberón perfeccionado, caracterizado esencialmente por el hecho de mantener el cuerpo del biberón propiamente dicho, dentro de una envoltura de material de poca conductibilidad térmica, por ejemplo, resinas termo-endurentes o similares, con la particularidad de la parte lateral y fondo del mencionado, que están suficientemente protegidas por separación de una cámara de aire u otro sistema aislante de la superficie interior de dicha envoltura, a fin de proporcionar una cámara relativamente aislante térmica para conservar la temperatura de la leche del biberón.
Effects of p-phenylenediphosphoric acid tetraethyleneimid, ethyleneiminoacetyl serine and their analogs on various strains of transplanted mammary cancers of mice