A randomised controlled trial of biopsy forceps and cannula aspiration for transcervical chorionic villus sampling.

Objective: This trial compared two instruments for transcervical chorionic villus sampling (CVS).

Design: Randomised controlled trial.

Setting: Regional university prenatal diagnosis and treatment centre.

Reliability Study of the Laparoscopic Skills Index (LSI): a new measure of gynaecologic laparoscopic surgical skills.

Objective: To construct and test the reliability of the Laparoscopic Skills Index (LSI) as a new, multi-item, objective measure of laparoscopic skills in gynaecology.

Methods: Construction of the LSI involved (1). item selection, (2).