Fig. 2From: Male adolescents with contralateral blebs undergoing surgery for primary spontaneous pneumothorax may benefit from simultaneous contralateral blebectomiesAge distribution of the three groups stratified by 0.5 using box plot analysis. B+cb those with contralateral blebs receiving one-stage bilateral surgeries, U+cb those with contralateral blebs only receiving unilateral surgery, U−cb those without contralateral blebs only receiving unilateral surgeryBack to article page