OBJECTIVE
To conduct a meta-analysis of randomized controlled studies to evaluate abdominal ultrasound-guided embryo transfer compared to the clinical touch method.
DESIGN
Meta-analysis.
SETTING
Four studies performed in academic research centers in Barcelona, Vizcaya, Hong Kong, and Madrid.
PATIENT(S)
A total of 2,051 patients: 1,024 received ultrasound-guided embryo transfers and 1,027 ...