NetNews Usenet Archive 1993 #1/NN_1993_1.iso/spool/talk/abortion/54143

Text File | 1993-01-04 | 1.6 KB | 37 lines

Newsgroups: talk.abortion
Path: sparky!uunet!timbuk.cray.com!hemlock.cray.com!mon
From: [e-mail] (Muriel Nelson)
Subject: Re: Nyikos and the one bad apple theory of forced pregnancy.
Message-ID: <[e-mail]>
Lines: 26
Nntp-Posting-Host: hemlock
References: <[e-mail]> <[e-mail]>
Date: 4 Jan 93 18:04:08 CST

In article <[e-mail]> [e-mail] (Stephen Matheson) writes:

[deletia]
>Hard numbers.  Excellent.  To use them in the context of the embryonic-to-
>fetal transition (occurring at the beginning of the ninth week of
>*gestation*), we must convert your LMP timepoints to gestational time.
>This is done by subtracting 2 weeks from LMP weeks, giving us a very
>solid approximation of the actual gestational age of the fetus.  The
>result:
[deletia]
>
>Yes, it would appear that Peter (note corrected spelling) erred.  I remain
>fascinated by the inaccuracy of the "common definition": I've now found it
>in 2 different dictionaries (although both were Merriam-Webster), while
>I know of at least 2 embryology books that flatly contradict it.  Indeed,
>I have found no evidence that 3 months was *ever* considered the beginning
>of the fetal period.  It's a little unnerving, isn't it?
>
Actually, if you do a reverse conversion (date of conception
to LMP dating) you would get 11 weeks, which isn't that far off
from three months.  I think we argue gestational age issues a
lot around here without clarifying which starting point is in
use.

muriel
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