𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Down syndrome and natural family planning

✍ Scribed by James, William H.

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
131 KB
Volume
66
Category
Article
ISSN
0148-7299

No coin nor oath required. For personal study only.

✦ Synopsis

Castilla et al. [1995] report that users of natural family planning (NFP) produced no excess of Down syndrome (DS) infants. The finding is relevant to the question of whether DS is sometimes the consequence of the fertilization of an oocyte which is "overripe." That question achieved prominence in the hypothesis of German [ 19681 that the decline in coital rate with maternal age results in a rise in the proportion of such late fertilizations, thus accounting for the maternal age effect in DS. It was shown mathematically that this decline

πŸ“œ SIMILAR VOLUMES

Down syndrome and natural family plannin
Down syndrome and natural family planning
✍ Castilla, Eduardo E.; Simpson, Joe Leigh; Queenan, John T. πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 119 KB πŸ‘ 1 views

We appreciate the interest of James [1996] in our recent report [Castilla et al., 19951. Of course, it is selfevident that definitively assessing the deleterious effect of aging gametes requires a more rigorous study design, namely, a cohort study in which date of conception is correlated with subse

Session 10 natural family planning
Session 10 natural family planning
✍ J. L. Simpson; R. Gray; J. Queenan; A. Perez; P. Mena; M. Barbato; R. Kambic; F. πŸ“‚ Article πŸ“… 1995 πŸ› Springer 🌐 English βš– 251 KB