In view of the large differences and changes in the number of tracking satellites used by tracking stations for Beidou-3 Global Navigation Satellite System and the uneven quality of the observation d
Raw data from open label portion BSS. There are 6 worksheets entitled: pre-existing comorbidities, COVID related symptoms & Morbidities, medications, symptom scores, baseline health scores and basi
As people increasingly communicate via asynchronous non-spoken modes on mobile devices, particularly text messaging (e.g., SMS), longstanding assumptions and practices of social measurement via teleph
