slide rings

a distinction without a difference

A GIS laboratory without walls

A laboratory without walls

AABB phrases without basic words

Abscess of lung without pneumonia

absence without leave

absent without leave

access without collision

act without consideration

Action without needs

activation process without Pd

activation without palladium

Acute Chagas’ disease without heart involvement

acute traumatic cervical central cord syndrome without radiological abnormality

Acute without haemorrhage or perforation

adaptive control without model

add without carry gate

addition without carry