LAHORE: Prime Minister Shehbaz Sharif and Pakistan Muslim League-Nawaz (PML-N) President Nawaz Sharif are expected to depart for London next week, according to sources close to the Sharif family. Nawaz is scheduled to undergo a routine medical check-up during his stay, which is likely to last around two weeks, sources said. The trip will also include political engagements. Nawaz is …