Tormans et al reported, based on replies from pediatricians, that one of the parents would be absent of work for approximately 10 days while a child was suffering from pertussis [40].
It should also be borne in mind that the initial list of farms encompassed the entire known population of cubicle-housed dairy cows in Norway, and that the descriptive and analytical results therefore were based on replies from, respectively, 2 thirds and one half of the total number of farms.
This figure is comprised of expenditure estimates, based on replies provided by country authorities to an OECD survey in 2004.
The spokesman added: "Salford University figures should be treated with extreme caution, as they are estimates based on replies from only a third of local authorities and rely on anecdotal information.
It said at least 11,540 under 14s were held in England and Wales between 2008 and 2009 - a figure based on replies from 24 out of the 43 forces.
As data were based on replies from 20 women, generalisability across the UK could not be claimed, although themes identified were very similar to those reported elsewhere [ 6- 10].
The mean number of required hours of CAP taught per semester for undergraduate medical students was 34 (range: 1 - 212 hours) based on replies from 21 respondents (64%).
Concerns about randomisation are a notable feature of Figure 1, a parallel coordinate plot of individuals' responses to the seven questions, divided for visual convenience into the four groups previously mentioned (based on replies to questions 3 and 7).
Until this week, that was arguably the most infamous incident of missile-hurling by fans in the N.F.L. On Sunday, Browns fans at Cleveland Stadium threw plastic bottles at referees and players after a referee made a controversial fourth-quarter call, based on instant reply.
b Based on node reply, node 1 elected as cluster head 2.
