Related Clues:

• Class to bone up on?: abbr.
• Prefix denoting life
• Life work?
• Bare-bones subj.?
• Surgeon's subj.
• Nonfict. category
• Med school subject
• Logical lead-in
• Subj. involving organs
• Medical-school subj.
• ___ Ed
• Life: Prefix
• Life lines
• Ethics or rhythm preceder
• Life's story