Sequence generation.

Comment: no information provided.

Sequence generation.

Quote: “patients were randomly allocated”.

Sequence generation.

Quote: “patients were randomly allocated”.

Comment: Probably done, since earlier reports from the same investigators clearly describe use of random sequences (Cartwright 1980).

Sequence generation.

Quote: “patients were randomly allocated”.

Comment: Probably not done, as a similar trial by these investigators included the same phrase yet used alternate allocation (Winrow 1983).

Sequence generation.

Quote (from report): “patients were randomly allocated”.

Quote (from correspondence): “Randomization was performed according to day of treatment”.

Comment: Not randomized.