If a patient is able to achieve the target heart rate, a regular treadmill stress test is capable of diagnosing important disease in approximately 67% or 2/3 rd of patients with coronary artery disease.
Negotiation is an important part of the role of the purchasing professional. It is a skill that is learnt and training can help purchasing staff in understanding what is needed when negotiating with vendors.
Make sure the other side leaves the negotiation feeling they've made a good deal. The offers you make should always leave you enough wiggle room to make acceptable concessions to the other side. Or as one businessman put it, The most important trip you may take in life is meeting people half way..