in his kitchen in chester, dr waheed arian is taking yet another call from afghanistan. hospital in kabul has a problem and needs expert help. most hospitals there have his number on speed dial. over the past two years, he has established a network of around 100 volunteer doctors and consultants in the west who give free advice to hospitals in war zones. it is all done by text, whatsapp, skype, and e—mail. this is tele—medicine at its simplest and most effective. they don't have the up—to—date technologies, the cutting—edge expertise. they don't have advanced, evidence—based medicine. they need any expertise and advice that's more world class here. it's very useful for them. just to make sure the child is well, the child is stable. they send us the cases immediately on the phone and our specialists look at those cases and give them advice. hi, who do we have here? for the last three years, the doctor has been based at a hospital in liverpool, but his life is still dominated by afghanistan. born in kabul 3a years ago, he grew up knowing only war. the soviet afghan conflic