APS

• acute physiology score;

• adenosine phosphosulfate;

• advanced photon source;

• American Pain Society;

• American Pediatric Society;

• American Physiological Society;

• American Proctologic Society;

• American Prosthodontic Society;

• American Psychological Society;

• American Psychosomatic Society;

• aminopropylsilane;

• ammonium persulfate;

• analog processing stage;

• annual person summary [Medicare data file];

• antiphospholipid antibody syndrome;

• attending physician's statement;

• Australian Psychological Society;

• autoimmune polyglandular syndrome;

• automated patent system;

• average pain sensitivity;

• prostate-specific antigen