Osteonecrosis of the knee develops through four stages, which can be identified by symptoms and X-rays. Stage I: Symptoms are most intense in the earliest stage. Symptoms may continue for 6 to 8 weeks and then subside. Because X-rays are normal, a positive bone scan is needed to make the diagnosis.
Judy Garland 'Dorothy' died June 22, 1969. Frank Morgan 'Professor Marvel, The Gatekeeper, The Carriage Driver, The Doorman, The Wizard of Oz' died September 18, 1949. Ray Bolger 'Hunk, The Scarecrow' died January 15, 1987. Bert Lahr 'Zeke, The Cowardly Lion' died December 4, 1967.
Dorothy L. Sayers (1893-1957) is most widely remembered today not for her writings on education (which were rather brief), but for her literary output. Her Peter Wimsey detective novels continue to be re-printed, and were adapted for television by the BBC in the 1970s.