background: the termination of pregnancy before 20 th week of gestation is abortion. there is two type of abortion: spontaneous and induce (legal or illegal). the annual number of pregnancy in the world is estimated over 200 million and one third of them is unwanted pregnancy. 95% of unwanted pregnancy is happened in developing country such as iran. in iran, the high prevalence of unwanted preg...

Spontaneous bilateral pneumothorax is a rare condition occurring only in 1,3% of cases spontaneous pneumothorax. Although recognized complication COVID it usually associated with severe pneumonia massive lung involvement and high level inflammatory cytokines – so called "inflammatory storm". Large percentage this patients requires life support mechanical ventilation accompanied pneumomediastinu...