lecithin-sphingomyelin ratio

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The ratio of lecithin to sphingomyelin present in amniotic fluid, used to determine fetal pulmonary maturity.

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QUIZ YOURSELF ON "WAS" VS. "WERE"!

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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Words nearby lecithin-sphingomyelin ratio

Carlisle writes that the Air Force would want a crew ratio of 10 to one for each drone orbit during normal everyday operations.
Exclusive: U.S. Drone Fleet at ‘Breaking Point,’ Air Force Says|Dave Majumdar|January 5, 2015|DAILY BEAST
During an emergency that ratio could be allowed to drop to 8.5 people per orbit.
Exclusive: U.S. Drone Fleet at ‘Breaking Point,’ Air Force Says|Dave Majumdar|January 5, 2015|DAILY BEAST
However, the Air Force is so strapped for people that the ratio has dropped below even that reduced level.
Exclusive: U.S. Drone Fleet at ‘Breaking Point,’ Air Force Says|Dave Majumdar|January 5, 2015|DAILY BEAST
The Italian navy tweeted regular updates of the saved-to-stranded passenger ratio.
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From that, they extracted the ratio of the number of deuterium atoms to the number of hydrogen atoms.
Are Comets the Origin of Earth’s Oceans?|Matthew R. Francis|December 14, 2014|DAILY BEAST
The fervor of an Englishman's loyalty is usually in a direct ratio with the extent of his material possessions.
Glances at Europe|Horace Greeley
This ratio constitutes one of the most important points in diagnosis, since it is practically unknown in other diseases.
A Manual of Clinical Diagnosis|James Campbell Todd
The service is practically the same, but the ratio of charges is from two to three times higher in the coffee room.
British Highways And Byways From A Motor Car|Thomas D. Murphy
Four hundred thousand pounds probably bore as great a ratio to the wealth of Scotland then as forty millions would bear now.
The History of England from the Accession of James II.|Thomas Babington Macaulay
It was soon found that with plate webs the ratio of depth to span could not be economically increased beyond 1/15 to 1/12.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3|Various