| http://www.w3.org/ns/prov#value | - Differences were resolved by discussion. (1) Sequence generation (checking for possible selection bias) We have described the methods used to generate the allocation sequence, and have assessed the methods as: low risk of bias (any truly random process, e.g. random number table, computer random number generator);high risk of bias (any non random process, e.g. odd or even date of birth, hospital or
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