At the beginning of May a brand new Great Ormond Street Hospital Children’s Charity advert started to air across UK TV channels, featuring patients and parents at Great Ormond Street Hospital. But who are these patients? And why are they in hospital? We spoke to the families of three of the patients to find out.

Last year, when he was just four years old, my son Mason became the smallest person to undergo a lung transplant in the UK.

This week Channel 4 aired a documentary called “Turtle Boy”, showing the story of a young boy in Columbia being treated for an extreme case of congenital melanocytic nevus (CMN) by Mr Neil Bulstrode from Great Ormond Street Hospital. The boy’s birthmark which was so big it amassed to approximately 40% of his bodyweight.

Ten-year-old Daisy is a patient at the Respiratory Sleep Unit at Great Ormond Street Hospital (GOSH). With the help of the unit, she’s now getting a good night’s sleep.

Three year old Joe Skerratt is now a picture of health, but he was kept alive for 251 days by an artificial heart – longer than any other child in the UK.

Isobel was born to parents Abigail and Shaun on 21 November 2010, and it became quite apparent very soon that there was a problem…

We asked parents at Great Ormond Street Hospital for their top tips for staying at the hospital. They came up with an amazing selection of fantastic ideas and advice – with these tips you’ll be much better equipped to tackle the day to day of being a GOSH parent. Watch our video to discover those essential items that will make life easier…

My youngest child, Dominic (5) and more recently his two older siblings (Lilia 7 and Elliot 9) are lucky enough to be counted among the thousands of children that Great Ormond Street Hospital looks after every year.

This Wednesday 14 March at 4:30pm on BBC1, the critically acclaimed CBBC documentary series ‘My Life’ will show patient Raphael Harvard as he undergoes a kidney transplant at Great Ormond Street Hospital.