document: Current challenges of POC platforms
  	Not only are testing, data processing, and analysis essential for a POC device to further analyze and track follow-up conditions, but also signal communications and even GPS information are (Quesada-Gonzalez et al., 2018).
  1.	Standard and connection:
  Requirements for a set of universal operation, wireless, and interconnectivity standards and protocols are necessary for each POC device in different communication systems.
  2.	Power supply: