Bhat 2014.

Methods	Design: 2‐arm parallel RCT
Participants	Number: 32 Women's age (mean years; experimental vs control): 29.6 vs 29.6 Inclusion criteria: women undergoing IVF Exclusion criteria: not mentioned Ovarian controlled hyperstimulation: not mentioned Fertilisation: IVF or ICSI Stage of the embryo at transfer: cleavage Embryo processing: fresh and frozen/thawed Number of embryos transferred (mean; experimental vs control): 2.9 vs 2.9
Interventions	Experimental: intrauterine administration of hCG 500 IU 7 minutes before ET Control: ET without hCG
Outcomes	Fertilisation rate
Notes	We emailed the study authors in February 2016 and January 2018 for more information on study design and outcomes. No reply has yet been received. Location: Radhakrishna Multispeciality Hospital and IVF Centre in Bengaluru in Southern India Period: April 2013 to March 2014 Power calculation: not mentioned Funding: none Trial registration: not mentioned and not found Publication type: full text

ET: embryo transfer; hCG: human chorionic gonadotropin; ICSI: intracytoplasmic sperm injection; IU: international unit; IVF: in vitro fertilisation; RCT: randomised controlled trial.