por Schaffer, Alexander J [autor] | Avery, Mary Ellen, 1927- [autor].
por Schaffer, Alexander J [autor] | Taeusch, H. William | Ballard, Roberta A [autor] | Avery, Mary Ellen, 1927- [autor] | Klajn, Diana Silvia [traductor] | Morando, Adriana [traductor] | Lopez, Gabriela [traductor] | Schaffer, Alexander J. Schaffer and avery's diseases of the newborn.
por Schaffer, Alexander J [autor] | Taeusch, H. William [editor] | Avery, Mary Ellen, 1927- [editor] | Schaffer, Alexander J. Shaffer's diseases of the newborn.