Capitalization of Main Entries

13.1.4 Capitalization of Main Entries

Although main entries have traditionally featured initial capitals to distinguish them from subentries, The Chicago Manual of Style, 15th edition, recommends lowercase, except when the entry term would begin with a capital, eg, proper nouns.⁴ This is especially worthwhile in biomedical publications, in which capitalization may be complex and may distinguish otherwise identical terms.

AFP. See α-fetoprotein

Afp, 98

AFP, 103

Brca1, 112

BRCA1, 54, 804–809

breast cancer, 50–57, 110–113, 801–815

Haemophilus influenzae Rd, 998

hepatitis, 1015–1028

HindIII, 698

LPL. See lipoprotein lipase

LPL, 1092

Staphylococcus aureus, 1056–1077. See also staphylococci