hastalık sebeplerı

https://scontent.xx.fbcdn.net/v/t1.0-9/99292527_120976336274327_324050257371463680_n.jpg?_nc_cat=106&_nc_sid=ca434c&_nc_ohc=KuUopY1lEUMAX_EZ-Mb&_nc_ht=scontent.xx&oh=0bb83108946b33479ff1698fee2fb940&oe=5EEDD265