They suggest using "particular types of culture media” that actually coats the embryo with these sticky proteins so it "glues" itself to the endometrium until it implants.
Bacebisa ukusebenzisa "iindidi ezithile zenkcubeko yamajelo” eyogquma isihluma sembewu ngeeprotini ezincamathelayo ukuze ‘sincamathele” ngokunokwaso kwi-endometrium de simile.