Meet the Team

Find out more about the International Child Health team below.

Barry Pizer.jpg

Professor Barry Pizer - Consultant Paediatric Oncologist and Clinical Director for International Child Health at Alder Hey Children's Hospital, Liverpool, UK

Barry graduated from the University of Bristol in 1981 and trained in Paediatrics and Paediatric Oncology at a number of centres before being appointed to his present position of Consultant Paediatric Oncologist at Alder Hey Children’s Hospital, Liverpool in 1995.  In 1992, he was awarded a PhD on the ‘The Development of Targeted Radiotherapy for 'Central Nervous System Leukaemia’.

Barry has a particular interest in Central Nervous System tumours in children and young people. Between 2003 and 2008, he was the chair or the Children’s Cancer and Leukaemia Group (CCLG) CNS Tumour Division.  He is a prominent member of the International Society of Paediatric Oncology – Europe Brain Tumour Group (SIOP-E BTG) and recently served as Chair of the group, hosted the well-received SIOP-E BTG meeting in 2011 and the International Symposium on Paediatric Neuro-oncology (ISPNO) 2016, Liverpool.

Barry was previously Co-Director of research at Alder Hey and is an Honorary Professorship at the University of Liverpool. He leads an expanding Liverpool based clinical and basic science research programme in neuro-oncology, pharmacogenetics and supportive care. 

Barry is also committed to International Child Heath.  He was the co-founder and Chair of the UK Paediatric Oncology in Developing Countries (PODC) group and is a member of the global SIOP PODC Group. Since 1996, Barry has developed strong links with the children’s cancer unit at Kanti Children’s Hospital, Kathmandu as well as several other overseas initiatives, including developing paediatric oncology in Bosnia Herzegovina and in establishing a service for children with Burkitt Lymphoma in the Cameroon.    


Sian Falder - Consultant Burns & Plastic Surgeon and Co-Director of Clinical Effectiveness & Service Transformation at Alder Hey Children's Hospital, Liverpool, UK

Sian has been a Consultant Plastic Surgeon at Alder Hey Children’s Hospital since 2008 and is the Clinical Lead of the Burns Service. Sian is also Director of Clinical Effectiveness & Service Transformation working on continuous quality improvement across Alder Hey.  

Sian qualified from St Mary’s Hospital in London in 1992 with MB BS and a first class honours BSc. Sian holds a Diploma of Tropical Medicine and Hygiene from the Liverpool School of Tropical Medicine.  Sian is dedicated to addressing Global Health inequalities, especially in the neglected areas of burns, which cause lifelong suffering and disability. Sian is a founder member of Alder Hey’s Department of International Child Health and a Trustee for the charities Interburns and So the Child May Live.

Sian leads the partnership with the Burns Unit in Kanti, Children’s Hospital, Kathmandu, Nepal, travelling there regularly and also works to improve burn care in Bangladesh, the West Bank and Tanzania.

Angie May.jpg

Angie May - Head of Clinical Partnerships and Lead Nurse at Alder Hey Children's Hospital, Liverpool, UK

Angie May is Head of Clinical Partnerships and the Lead Nurse for the Department of International Child Health at Alder Hey Children’s Hospital. Her role includes the development of partnerships and services for the international market.

Angie has worked in the NHS, for over 30 years and has significant experience in professional nursing leadership roles including specialist nurse, consultant nurse, matron and senior nurse.  Her clinical background is in the challenging and demanding specialty of emergency care. She has a special interest in leadership and change management and is an associate lecturer for Global Health Leadership at the Liverpool School of Tropical Medicine.


Professor Atif Rahman Consultant, Child and Adolescent Mental Health Services Professor of Child Psychiatry, Institute of Life and Health Sciences University of Liverpool, UK

Atif Rahman is Professor of child psychiatry and global mental health at the University of Liverpool and chairs the Academic child mental health unit at Alder Hey Children’s Hospital, Liverpool, United Kingdom. He is one of the founder members of the International Child Health Department at Alder Hey and leads the Global Mental Health Research Group at the University of Liverpool. Atif is an expert in developing and evaluating culturally appropriate psychosocial interventions across the life-course that can be delivered by non-specialists health professionals, teachers and parents under supervision of specialists. He works closely with the World Health Organization in evaluating and disseminating psychological interventions globally. He has a special interest in translating global innovations in health-care delivery to the NHS. 


Professor Stephen Allen, Professor of Paediatrics, Liverpool School of Tropical Medicine; Consultant Paediatrician, Alder Hey Children's Hospital, Liverpool, UK 

Professor Allen joined LSTM in September 2014, with the mission to further develop global child health by creating exciting opportunities in the UK and overseas in clinical research and to contribute to teaching. He is a Consultant Paediatrician at Alder Hey Children’s Hospital where the main aims are to contribute to the hospital’s international programme and to advance clinical research in paediatric gastroenterology.

Steve is the Secretary of the Commonwealth Association of Paediatric Gastroenterology and Nutrition (CAPGAN: Previously, he was Chair of the Joint BSPGHAN / NIHR-Children Gastroenterology Hepatology and Nutrition Research Working Group and International Officer for the Royal College of Paediatrics and Child Health (RCPCH).

Prior to the LSTM appointment, he was Professor in Paediatrics and International Health at the College of Medicine, Swansea University and Honorary Consultant Paediatrician, Abertawe Bro Morgannwg University Health Board, UK for 12 years. In previous appointments, he has undertaken research, clinical practice and teaching with the Medical Research Council Laboratories, The Gambia and the Weatherall Institute of Molecular Medicine, University of Oxford and Papua New Guinea Institute of Medical Research.

Steve’s main research interests are in paediatric gastroenterology with a focus on interventions to improve gut health across a broad range of conditions including inflammatory bowel disease and malnutrition. He has undertaken clinical research in probiotics in the prevention of atopy in infants and also antibiotic-associated diarrhoea in older people, malaria and the protective effect against malaria of inherited haemoglobin and red cell variants.

Areas of interest

  • Research: malnutrition; environmental enteric dysfunction; inflammatory bowel disease; pro/synbiotics; haemoglobin / red cell polymorphisms
  • Teaching/Training: Co-Director DTM&H course; MSc module lead Quality Improvement in Global Child Health
  • Clinical: paediatric gastroenterology


Professor Melissa Gladstone, Professor in Neurodevelopmental Paediatrics and International Child Health. University of Liverpool and Alder Hey Children's Hopsital, Liverpool, UK  

Professor Gladstone’s main research interest is in the assessment of neurodevelopmental and neurobehavioural outcomes in children in low income settings globally.

Melissa has currently undertaken large field studies in a number of African settings looking at the effect of health and social factors on early child development (malaria in pregnancy, nutrition, prematurity, HIV exposure) but is also interested to pursue the linkages between assessment of children’s development and behaviour with interventions which can be provided in low income settings. Melissa  created a neurodevelopmental assessment tool, the MDAT, which is being utilised in over 10 countries in Africa for research and programmatic work – much of this linking early interventions in nutrition, WASH and early stimulation programmes with later outcomes in children. She has recently been working with the World Health Organization on creation of the Infant and Young Child Developmental Indicators (IYCD) and the Global Scales of Early Development (GSED). Her future plans include better ways of measuring childhood disability in the early years in multiple settings globally and how to utilise this to understand better the causes of neurodevelopmental disorders in children in diverse settings.


Dr Helen Nabwera, Senior Clinical Research Associate - Neonatology, Liverpool School of Tropical Medicine; Honorary Consultant Paediatrician, Alder Hey Children's Hospital, Liverpool, UK

Helen is also an honorary consultant in Paediatric Infectious Diseases at Alder Hey Children’s Hospital. She has clinical and research experience from sub-Saharan Africa and the UK.

Prior to taking up her position here at LSTM in June 2017, Helen worked as a locum general paediatrician at the Great Ormond Street Hospital for children. She was awarded a Medical Research Council (MRC) Career Development Fellowship (for a PhD) from 2012-2015. She spent most of that time at MRC Unit, The Gambia’s rural field station in Keneba, managing a rural primary health care facility and undertaking nutrition research. She has a PhD from the London School of Hygiene and Tropical Medicine (2018). She also has a Diploma in Tropical Medicine and Hygiene from LSTM (Distinction-2005).

Helen undertook her undergraduate medical training at the University of Nottingham followed by postgraduate training in Paediatrics in the East and West Midlands deaneries in the UK.

Research Interests

Helen’s research focuses on newborn health and designing and testing innovative strategies that incorporate infant and early child nutrition, for reducing mortality in the low birth weight infants who are at risk of poor outcomes.

The overarching theme that has come from her work both in Kenya and The Gambia is that maternal socio-economic status and support networks within the family (particularly from the husband) and at a community and national level have a great influence on the nutritional outcomes of their children. This has a lot of implications for advocacy and policy planning to improve the health and nutritional outcomes of children in low- and middle-income countries.


Helen is the Lead for the Sexual and Reproductive Health stream of the Masters in International Public Health. She is also co-convenes and teaches on several of child health modules.





Back to Alder Hey website

Hide this section
Show/hide accessibility tools