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1.
Article in Spanish | CUMED | ID: cum-41315

ABSTRACT

En este trabajo se discute el desempeño de cuatro solucionesdel problema de comparación de métodos: regresión de mínimoscuadrados ordinarios (P1), regresión de Passing-Bablok(P2), regresión de Deming con coeficiente λ estimado apartir de las varianzas intrarreplicados (P3) y regresión deDeming con coeficiente λ estimado a partir de las varianzasde las series (P4), cuando los errores analíticos correspondientespueden asumirse constantes, en el rango de concentracionesde interés, pero diferentes. El caso de los erroresanalíticos constantes e iguales se presentó en otro trabajo...(AU)


Subject(s)
Linear Models , Statistics as Topic
2.
Rev. méd. Chile ; 128(7): 778-82, jul. 2000. ilus, tab
Article in Spanish | LILACS | ID: lil-270889

ABSTRACT

We are reporting a 37 year old male with severe oligozoospermia and a history of infertility for thirteen years and surgery for severe unilateral varicocele. The hormonal levels for FSH, LH and T, and karyotype were within the normal range. Multiplex PCR revealed the presence of a de novo microdeletion in the azoospermia factor (AZF) c region involving the deleted in azoospermia (DAZ) and basic protein Y-2 (BPY2) genes. These results suggest that severe oligozoospermia should be considered for the screening of microdeletions of Yq involving the AZFc region even in the presence of a varicocele


Subject(s)
Humans , Female , Adult , Oligospermia/genetics , Y Chromosome/genetics , Chromosome Deletion , Varicocele/surgery , Varicocele/complications , Infertility, Male/genetics , Chromosome Aberrations/genetics , Karyotyping
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