tony danko will leave the group with immediate effect.ormer boss, tony danker, has been dismissed from his role instead of being invited to put his position forward, he says. as we get any more reaction, we will bring that to you. thousands ofjunior doctors in england have started a four—day strike that threatens to bring the worst disruption in the history of the health service. it runs all the way through to saturday morning, and could mean more than a quarter of a million appointments and operations. the doctors' union is in a row with the government over pay forjunior doctors, with the british medical association sticking to its demand of a 35% pay rise and the government refusing to negotiate until what it sees as a more reasonable pay demand is met. now, to step us through the finer details of this story is our health reporter, jim reed. it's worth starting by talking about exactly whojunior doctors are. if you want to become a doctor in the uk, you have to do between four and eight years' worth of training at a medical school. and