This is an rewrite of my earlier post.
I thought that these scenes were cut from my edition of STH bought in S'pore, because I've seen NG clips featuring some of them and they were narrated in an episode guide from another forum.
But having asked the same question at the Korean Freeboard, 2 readers have replied that these scenes were NOT in the Korean broadcast. So kk is right, they were dropped.

In case you've watched NG clips but not the actual drama, just take note that the following are ONLY in NG clips. Now you won't be confused like I was!

Episode 19
Scene 34
Together both JS & SJ listens to what the doctor has to say. Both feels extremely happy and hugs each other upon hearing that cancer did not spread. [NG clip showed JW falling off the stool next to Sangwoo.]

Scene 39/40
TH visits SJ at his office. He sees JS listening to the music and knitting away happily. SJ asks why he did not keep in touch with them for such a long time. TH replies that he is busy preparing to leave for France. It seems that TH's visit to say goodbye. TH asks SJ to loan him an LP. [NG clip showed Shin talking to Sangwoo at his desk while JW knits outside. Sangwoo was wearing the rabbit beanie.]

Episode 20

Scene 24
SJ sees JS vomitting and asks if she was pregnant. SJ insists that she consults a doctor when she goes for her regular checkup the next day. [NG clip showed Sangwoo slipping when he rushed into the bathroom while JW was vomitting.]