Norway’s Crown Princess Mette-Marit has undergone a successful lung transplant and is recovering from the procedure, the royal household said in a statement on Wednesday.The 52-year-old wife of Crown Prince Haakon, the heir to the Norwegian throne, was diagnosed with pulmonary fibrosis in 2018, a chronic disease that causes scarring in the lungs and leads to a reduced oxygen uptake.“Like all newly transplanted patients, the crown princess will remain at the hospital for several weeks to...