Related Clues:

• Blood donation
• ___ of measure
• Two tablets every 12 hours, say
• Part of 6-Down
• Foot or hand
• Word with military or heating
• Apartment, e.g.
• Apartment in a complex
• Item
• Amount in a shot
• Curriculum portion
• Word with intensive care
• Army subdivision
• Course section
• It's often named for a scientist