Where Everybody Knows Your Name that greatly appealed to the Charles brothers. But overall, the song missed the mark and was passed over. The fourth song began with a catchy intro followed by simple alternating chords on a piano. The opening verse lines, both musically and lyrically, were something of a lament. The verse then transitioned into a soaring refrain that seemed to capture the essence of why people might want to go to a place like "Cheers" — a place "Where Everybody Knows Your Name". The two songwriters recorded a simple piano/voice demo of the new song for the Cheers producers. Upon hearing it,
Daniel A. Portnoy Pennsylvania, where he collaborated with Dr. Lewis Tilney in the Biology Department and made the observation that "L. monocytogenes" spreads from one cell to another by exploiting a host cell system of actin polymerization. His lab also defined the role of the listerial hemolysin in mediating dissolution of phagosomes. In collaboration with Dr. Philip Youngman, he showed that expression of the "L. monocytogenes" hemolysin by "Bacillus subtilis" led to its growth inside of host cells. Dr. Portnoy collaborated with Dr. Yvonne Paterson, who also arrived at Penn in 1988, on the use of "L. monocytogenes" as a recombinant vector-based vaccine