Minimizing movement helps prevent bleeding from the site of catheter insertion. Minimizing movement helps prevent bleeding from the site of the catheter insertion. These methods involve altering gene length via insertion and deletion mutations. These include surgery, lithotripsy, ureteric stent insertion and radiofrequency ablation. Thinner needles may be flexible and require tubes for insertion. There can also be replication errors that lead to substitution, insertion, or deletion mutations. There are other data structures that support much more efficient insertion and deletion. Knot removal is the reverse of knot insertion. BCG is given as a single intradermal injection at the insertion of the deltoid. Normalization aims to free the database from update, insertion and deletion anomalies. The stem is used for insertion and removal. Radix trees support insertion, deletion, and searching operations. Acupuncture is the insertion of thin needles into the skin. Placentas with velamentous cord insertion have a lower vessel density. Insertion of a Group II Intron, and Intronization.