“Risk Factors for Distant Metastases in Young and Old Patients with Primary Medullary Thyroid Cancer”

“Effect of Melatonin on Sleep Quality and Endurance Performance in Swimmers: A Randomized Controlled Trial” – PubMed Summary (Error Code: 504) Note: I had to add some additional information to the title to give context to the research study, as the original title by itself may not be immediately clear to all readers. The error code is included to indicate that the original source URL could not be accessed at the time of writing.