to accommodate tetraphobia-related sensitivities have been seen in Canada, which has a significant population of Chinese descent. Richmond Hill, Ontario banned the number four on new houses in June 2013. Property developers in Vancouver omitted the number from new buildings until October 2015, when the city banned non-sequential numbering schemes. In the Aria Hotel in Las Vegas, among others, numbers 40-49 are skipped for the same reasons they may be omitted in China. In some Italian regions (e.g. Tuscany) four means coffin and thus it is feared. Corporate examples Nokia The software platform Symbian, used by Finnish telecommunications firm Nokia in their Series 60 platform, avoids releases beginning with 4, as it did when it was EPOC and owned by Psion (there was no Psion Series 4, and there was no 4th edition of S60). This was done "as a polite gesture to Asian customers". Similarly, Nokia did not release any products under the 4xxx series, although some of Nokia's other products do contain the number 4, such as the Series 40 platform, and the Nokia 3410. However, as of the Mobile World Congress 2019 event, the company had announced the Nokia 4.2. SaskTel When area code 306 was nearing exhaustion in 2011, the Canadian Radio-television and Telecommunications Commission originally proposed that the new area code be 474. However, representatives from SaskTel requested that the new area code be 639 instead, to avoid the negative connotations of 4 in Asian cultures. 639 was subsequently approved as the new area code. OnePlus The Chinese smartphone manufacturer OnePlus chose to name its smartphone model after the 3 and 3T the 5, avoiding the number 4. Research The British Medical Journal reported in a study that looked at mortality statistics in the United States over a 25-year period. They found that on the fourth day of the month, Asian people were thirteen percent more likely to die of heart failure. In California, Asians were twenty-seven percent more likely to die of a heart attack on that day. The purpose of the study was to see if psychological stress caused by belief in this superstition could indeed trigger deadly heart attacks and other fatal incidents. In popular culture Guido Mista, a supporting character and core ally from the Golden Wind arc of the anime and manga series JoJo's Bizarre Adventure, suffers from tetraphobia. This shows itself through (among other things) complaining or becoming agitated