When these initial results had been examined in a big series for patients, ATM mutations were within four of 166 subjects with pancreatic tumor but had been absent in 190 spousal control subsets. Klein stated that knowledge of the current presence of the ATM gene may lead to better screening for pancreatic cancer, the fourth most common cause of cancer-related death. However, there are no recommended screening tests currently. Many doctors use endoscopy as a screening device for pancreatic cancer, but researchers are evaluating this system in clinical trials even now..On a daily basis, Walgreens estimates that its shops serve 6.2 million clients. The ongoing company was No. 37 on the Fortune 500 list in 2014. Express Scripts David Whitrap, senior director of corporate communications for Express Scripts, informed Pharmacy Occasions that the ongoing firm will not segment its individual sections, but he pointed to a list created by Adam Fein, president of Pembroke Consulting and writer of DrugChannels.com. On that list, Express Scripts was ranked third for 2014, with $38 billion in revenue from prescription sales. Whitrap attributed Express Scripts’ success to 3 factors: convenience, affordability, and specialized treatment.