Mandavilli, A. (2021, October 12). If You’ve Had Covid, Do You Need the Vaccine? - The New York Times. https://www.nytimes.com/2021/10/12/health/if-youve-had-covid-do-you-need-the-vaccine.html

As of 2022, there are more than 2 million realtors in the United States, not all using real estate marketing automation. Craig Eaton, owner of Eaton Realty, believed that real estate companies could keep up with trends without automating real estate marketing. But as the number of competitors increased, Craig had a constant flow of customers. After integrating real estate marketing automation, Eaton Realty processed over 500 leads in the first month. This required full-time work from multiple agents, which may have had a minor impact. This was one of the best examples of how real estate marketing automation can save business costs and have a positive impact on the process.

Dr Daya Sharma 😷🥽💨🧼💉💉. (2021, October 30). Some of the UK JCVI deliberations are deeply disturbing, eg arguing against childhood vax so that they can get infected & boost immunity in adults. Also imply that vax doesn’t have an individual benefit! 🤯 How much of this warped thinking is present in Australia? #COVID19Aus https://t.co/o887d2etcW [Tweet]. @DrDayaSharma. https://twitter.com/DrDayaSharma/status/1454418003429183492

Prof. Gavin Yamey MD MPH. (2021, October 30). “Circulation of COVID-19 in childhood could therefore periodically boost immunity in adults through exposure” When I say childhood vax ALSO benefits adults, folx say “you can’t use benefits to adults in your argument!” JCVI uses benefits to adults of letting kids get infected 👀 [Tweet]. @GYamey. https://twitter.com/GYamey/status/1454433823085715461

Barros-Martins, J., Hammerschmidt, S. I., Cossmann, A., Odak, I., Stankov, M. V., Morillas Ramos, G., Dopfer-Jablonka, A., Heidemann, A., Ritter, C., Friedrichsen, M., Schultze-Florey, C., Ravens, I., Willenzon, S., Bubke, A., Ristenpart, J., Janssen, A., Ssebyatika, G., Bernhardt, G., Münch, J., … Behrens, G. M. N. (2021). Immune responses against SARS-CoV-2 variants after heterologous and homologous ChAdOx1 nCoV-19/BNT162b2 vaccination. Nature Medicine, 1–5. https://doi.org/10.1038/s41591-021-01449-9

Griffin, S. (2021). Covid-19: Millions could be offered booster vaccinations from September. BMJ, 374, n1686. https://doi.org/10.1136/bmj.n1686

Beautiful introduction about STL & Boost.

another great description of the phenomenon

json文件读取时要注意这点，json中数据类型并不重要

使用shared_ptr的第一原则

链表就有可能出现循环引用的问题