Infection (e.g., gas gangrene) can cause gas to be trapped in the subcutaneous tissues. Subcutaneous emphysema can be caused by medical procedures and medical conditions that cause the pressure in the alveoli of the lung to be higher than that in the tissues outside of them.
So here's a quick look at PFE's most important numbers right now (for April 14, 2017). PFE shares slipped 0.12% or $0.04 from the previous trading session. That took the Pfizer stock price to $33.88.
With Pfizer (PFE - Free Report) recently announcing its intention to acquire cancer-focused biopharma company Medivation for approximately $14 billion, expectations are high that mergers and acquisitions (M&As) will pick up pace while licensing deals will continue. Picking Winners Could Be a Challenge.