| SPS | Sleep Promoting Substance |
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| SRS-A | Slow Reacting Substance of Anaphylaxis |
| ADS | acute death syndrome; acute diarrheal syndrome; Alcohol Dependence Scale; alternative delivery syste... |
| ALS | acute lateral sclerosis; advanced life support; afferent loop syndrome; amyotrophic lateral sclerosi... |
| AMS | ablepharon-microstomia syndrome; acute mountain sickness; adenosylmethionine synthetase; aggravated ... |
| united states substance abuse and mental health services administration | An agency of the public health service concerned with the overall planning, promoting, and administering of programs pertaining to substance abuse and mental health. It is commonly referred to by the acronym samhsa. On 1 october 1992, the united states alcohol, drug abuse, and mental health administration (adamha) became samhsa. (telephone communication with samhsa 7 april 1992) (12 Dec 1998) |
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| zymoplastic substance | <haematology> Traditional name for substance in plasma that converts prothrombin to thrombin. Now known not to be a single substance. (See thrombin). (18 Nov 1997) |
| filar substance | A filamentous plasmatic material, beaded with granules, demonstrable by means of vital staining in the immature red blood cells. Synonym: alpha substance, filar mass, filar substance, substantia reticularis, substantia reticulofilamentosa. Synonym: reticular formation. (05 Mar 2000) |