"Blood samples were taken from 48 informed and consenting patients . . . the subjects ranged in age from 6 months to 22 years" (Pediatr. Res. 6:26, 1972). There is no grammatical problem with that sentence, but the telescopic writing leaves the reader wondering just how the 6-month-old infants gave their informed consent.
And, of course, always watch for spelling errors, both in the manuscript and in the proofs. I am not an astronomer, but I suspect that a word is misspelled in the following sentence: "We rely on theatrical calculations to give the lifetime of a star on the main sequence" (Annu. Rev. Astron. Astrophys. 1:100, 1963).
