Embryologists & Research Scientists

Our highly trained laboratory personnel play a key role in our success. Our laboratory team is a mixture of scientists from technical, research and medical backgrounds educated to a minimum of MSc level, but most to PhD level.

In addition, our andrologists and embryologists are certified in their speciality by the European Society of Human Reproduction and Embryology (ESHRE), an internationally recognised laboratory qualification.

Dr Tim Dineen

Head of Laboratory Services

Dr Tim Dineen is one of the founding members of Waterstone Clinic, having worked at the clinic since 2002. He graduated with a BSc and PhD from the National University of Ireland in Galway before training as an embryologist and subsequently graduating with a Masters in Genetic Counselling from the...
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Dr Xiao Zhang

Head of Research and Development

Dr Xiao Zhang initially studied medicine in China, receiving an M.D. and practicing as a general surgeon. He then went on to become a researcher, studying ovarian aging and ovarian tissue cryopreservation. Dr Zhang received a Ph.D. in Reproductive Medicine from Peking University, where he completed research studies on the...
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Adrienn Kovacs

Senior Embryologist

Adrienn Kovacs completed her studies at the University of Pecs in Hungary in 2003, graduating with a Bachelor's degree in Chemical Science and a Masters of Biological Science, where her thesis focused on male fertility. Adri's career in embryology began at the Fertility Centre of Buda in St. Janos Hospital,...
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Dr Julie O'Callaghan


Dr Julie O'Callaghan graduated with a Bachelor of Genetics (honours) from University College Cork in 2004. She then proceeded to complete a PhD and post-doctoral research in the area of Molecular Genetics, specifically focusing on 'Pseudomonas aeruginosa - Cystic Fibrosis host interactions'. This research resulted in a number of presentations...
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Ramona Mihart


Ramona Mihart graduated with a BSc. In Biology (with distinction) from the University of Bucharest in 2003. She subsequently completed her MSc. in Genetics, Microbiology and Bio-technologies where her final year thesis focused on embryo biopsy and PGD/PGS. Ramona gained clinical experience in embryology in fertility clinics in Romania before...
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Jennifer Culligan


Jennifer graduated with a Bachelor of Biotechnology (honours) from the National University of Ireland, Galway in 2011. Jennifer subsequently gained embryology experience in both the Kilkenny and Galway fertility labs prior to joining Waterstone Clinic, Cork in 2014. She is an active member of the society of Irish Clinical Embryologists (ICE) (having...
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Waterstone Clinic is regulated and licensed by the Health Products Regulatory Authority (HPRA), TE-007. We are inspected by the HPRA to ensure compliance with European tissues and cells legislation.

We operate a comprehensive quality management system, with regular internal audits to ensure standards are maintained. We are committed to delivering a professional service to the highest possible ethical and clinical standards.

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