Diagnosis and treatment

FILE - In this June 11, 2018 file photo, Billy Caldwell sits with his mother Charlotte. The British government on Saturday June 16, 2018, changed course over a case concerning the use of cannabis oil, saying an epileptic boy can be treated with it after his mother said he needed it to survive severe seizures. (Stefan Rousseau/PA via AP, File)

FILE - This June 8, 2007 file photo shows a glass of milk on a table during a family breakfast in Montgomery, Ala. Nearly 20 years ago, about nearly half of high school students said they drank at least one glass of milk a day. But now it’s down to less than a third, according to a survey released by the Centers for Disease Control and Prevention on Thursday, June 14, 2018. (AP Photo/Rob Carr)

Britain's Queen Elizabeth II leaves after opening The Queen's Diamond Jubilee Galleries at Westminster Abbey in London, Friday, June 8, 2018. The Queen's Diamond Jubilee Galleries will open to the public on June 11. The new galleries are set more than 16 metres above the Abbey's floor in the medieval Triforium, an area that has never been open to the public before. (AP Photo/Kirsty Wigglesworth, Pool)

FILE - In this June 14, 2011, file photo, various prescription drugs on the automated pharmacy assembly line at Medco Health Solutions in Willingboro, N.J. Medicare recipients cut back on pricey brand-name drugs but they still had to spend more on such medications anyway, according to a government report that blames rising manufacturer prices for squeezing older people and taxpayers. (AP Photo/Matt Rourke, File)

In this Thursday, May 24, 2018 photo, Adine Usher, 78, meets with breast cancer study leader Dr. Joseph Sparano at the Montefiore and Albert Einstein College of Medicine in the Bronx borough of New York. Usher was one of about 10,000 participants in the study which shows women at low or intermediate risk for breast cancer recurrence may safely skip chemotherapy without hurting their chances of survival. (AP Photo/Kathy Young)

This Friday, June 1, 2018 photo shows Baylor St. Luke's Medical Center in Houston. Baylor St. Luke's Medical Center has suspended all medical procedures in its renowned heart transplant program following the deaths this year of at least three patients. Baylor St. Luke's Medical Center announced Friday, June 1, 2018 that the transplant program will be inactive for 14 days as administrators assess what's gone awry with operations. (Jon Shapely/Houston Chronicle via AP)

Westley Sholes, 78, a retired health care manager poses for a picture at his home in Rancho Palos Verdes, Calif., on Wednesday, May 30, 2018. Results from his first prostate cancer scan were suspicious and the second done three months later detected early cancer. That was 20 years ago; Sholes had surgery and is doing well. (AP Photo/Chris Carlson)