Double-postings
13.2.4 Double-postings
Listing the same citation under 2 or more entries, known as double-posting, is helpful when readers might be expected to look equally frequently in more than one place.
benign prostatic hyperplasia (BPH)
(BPH) BPH (benign prostatic hyperplasia)
prostatic hyperplasia, benign (BPH)
cTnC, 246
cTnC, 246
TnC, 345
[cTnC is listed in both the c’s and in the t's.]
However, for entries that will also appear in a series of related subentries under a main heading, cross-references to the principal form of entry are preferred to double-posting.
Acceptable:
E-selectin, 550
P-selectin, 551
Selectins
E-selectin, 550
P-selectin, 551
Preferred:
E-selectin. See under selectins
P-selectin. See under selectins Selectins
Selectins
E-selectin, 550
P-selectin, 551