From the Oriental Land to Shanghai Children's Hospital, you can take the subway according to the following steps:

1. Take the subway 17 from Dongfang Oasis Station to Hongqiao Railway Station.

2. Get off at Hongqiao Railway Station and transfer to Metro Line 2.

3. Take Metro Line 2 to Weining Road Station.

4. Get off at Weining Road Station and walk about 1 km to Shanghai Children's Hospital.

The above is the subway ride from the Eastern Land to Shanghai Children's Hospital for your reference. In practice, please adjust the travel route according to the specific situation of the local subway line.