Hyponatremia is commonly defined as a serum sodium concentration below 135 meq/L but can vary to a small degree in different clinical laboratories [1,2]. The dilutional fall in serum sodium is in most patients associated with a proportional reduction in the serum osmolality (ie, to a level below 275 mosmol/kg), but there are some exceptions.
The iron worker, Gary Russo, sounded like Frank Sinatra and wowed pedestrians a few years ago with his singing by a 2nd Avenue subway construction site in Manhattan during his lunch breaks.
Beginning his musical career in the swing era as a boy singer with Harry James and Tommy Dorsey, Sinatra found success as a solo artist from the early to mid-1940s after being signed by Columbia Records in 1943. The idol of the  bobby soxers , he released his first album, The Voice of Frank Sinatra, in 1946. His professional career had stalled by the early 1950s, but it was reborn in 1953 after he won the Academy Award for Best Supporting Actor for his performance in From Here to Eternity.