7B4. Example:

Title history: Securities law, fraud--SEC

rule 10b-5 (1967-Oct.? 1979); Securities fraud and commodities fraud (1979-Dec. 1986)

(earlier titles and their durations are known)

Title history: Trial of medical malpractice cases (1960- )

(original title and date the publication began are known;

duration of original earlier title is unknown)

Title history: [Earlier title] (period unknown)

an earlier title is known; whether it was the only difference,

and the duration of the earlier title are unknown)

Slight differences in title

(title has been updated to its latest form which differs

only slightly from earlier one(s))