Following the acquisition, Serica became a wholly owned subsidiary of Allergan. Serica Stockholders received an upfront money payment plus collateral in a new company, Alacer Biomedical, Inc. The worthiness of the transaction was not disclosed. To the acquisition Prior, Serica had raised less than $24M in equity funding from a syndicate that included Morningside, Prism, Ivy, and various individual investors. Altman, Ph.D., CEO and Founder of Serica.D., General Partner at Prism.At screening, participants also completed the Epworth Sleepiness Level, a self-reported way of measuring daytime sleepiness with scores ranging from 0 to 24 and higher scores indicating more sleepiness. Complete inclusion and exclusion criteria are given in the Supplementary Appendix, offered by NEJM.org. Sleep tests of eligible participants were conducted at their homes with the use of a portable rest monitor , which assessed airflow through a nasal cannula pressure transducer and an oronasal thermal sensor, stomach and thoracic movement through inductance plethysmography, and oxygen saturation through pulse oximetry with a finger-tip sensor.