Chunyu Doctor, the largest telemedicine platform in China

Chunyu Doctor (春雨医生) is an online telemedicine platform in China. Among the telemedicine companies in China, it has the largest Internet penetration rate, and it has accumulated more than $100 million in capital. In September 2016, Cycares, the international branch of Chunyu Doctor, completed its series C venture capital fund raising round, raising $50 million, the largest round of venture funding ever achieved in the Chinese telemedicine industry.

thredUP utilizing network effects

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thredUP owners increased their control of the multi sided platform by transferring it from a marketplace to a re-seller and grew their network by utilizing direct and indirect network effects. However, they are still at risk of imitation and substitute, as there is no affiliation and no switching costs both from the supply side and the demand side.