Medical significance of Dhan Teras and Diwali Festival

Came across interesting lines about dhanteras at wikipedia and at vedabase respectively:
Since this is the night before diwali, it is also called'chhoti diwali' or diwali minor diwali.
According to another popular legend, when the gods and demons churned the ocean for amrita or nectar, dhanvantari (the physician of the gods and an incarnation of vishnu) emerged carrying a jar of the elixir on the day of dhanteras
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The son of kasya was kasi, and his son was rashtra, the father of dirghatama. Dirghatama had a son named dhanvantari, who was the inaugurator of the medical science and an incarnation of lord vasudeva, the enjoyer of the results of sacrifices. One who remembers the name of dhanvantari can be released from all disease.
Please read the full context at http://vedabase. Net/sb/9/17/4/en1 and at http://vedabase. Net/sb/8/8/34/