It is to be regretted
that space limitations prevented the publication, other than those published last week, of the hundreds of other interesting and clever letters received and the reproduction of as clever sketches to explain these letters.
But at 303 pages, it's likely that
space limitations prevented the inclusion of these and many other topics.
Not exact matches
Constraints on sample size (ie, need to enroll 400 children total),
space limitations, scheduling logistics, and the unwillingness of some practices to provide different services to families
prevented randomization at all sites.
Constraints on sample size,
space limitations, scheduling logistics, and the unwillingness of some practices to provide different services to families
prevented randomization at all sites.