In a video by Dr Greger, he discusses how eggs promote cancer growth.

Three pillars of mercury detoxification

It sounds like conspirary theory until now.

Ablating liver tumors using laser to burn the cancer cells

Mistletoe, low level laser therapy are the surprising ones included.

The gut microbiome has an effect how cancer  drugs work. 

Newer immunotherapy drugs are the main drivers for growth in cancer industry 

Circulating tumor dna can be detected and analyzed for drug resistance and relapse

https://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano.2017.52.html