In 2010, worldwide sales of Plavix topped $6 billion (yes...billion!). For a typical stent patient, one 75mg tablet of brand-name Plavix a day cost more than $210 a month. Those with drug-eluting stents (80% or more of patients) generally must take Plavix for a year minimum.
Delving deeper. Yes, there is a color feeling connection in preschool aged children. Red is mad, blue is sad, yellow is happy and green is glad. This commonsensical approach to tying primary colors with basic feelings is effective for young children.
In the US, white, Black and green perform the same functions. Other than that its a little bit open. In circuits with a lot of wires, esp. cables, often the black brown red org yel green blue vio gry wht are used same as the resistor color code to identify sequences of wires.