The MedEx 1000 could be managed using either hot-swappable battery or an external resource. The unit can accept external ruthless or low pressure resources of oxygen. A USB Slot provides connection to an external printer, and allows for a connection of a USB flash drive to off-load logged data. An Ethernet Port allows for Local Area Network connectivity. The MedEx 1000 is intended to be found in hospitals, aircraft, ambulances, field hospitals, and extended treatment facilities.Cox regression was performed by using data on tumor HPV position and smoking status, for sufferers for whom these data were available. Unadjusted and adjusted hazard ratios for HPV-positive and HPV-negative position were compared between your two organizations to estimate the proportion of the difference in survival that was due to covariates. To research potential bias in estimates because of lacking data on HPV position, we repeated the analyses for the subgroup of sufferers with oropharyngeal squamous-cell carcinoma and for the entire RTOG research cohort , using values imputed with the Markov chain Monte Carlo algorithm with a noninformative prior distribution .