Please send me all letters and emails received by the Health Minister between 01 January 2013 and 31 March 2013 on the topic of childhood immunisations.
Anfonwch yr holl lythyrau a’r negeseuon e-bost a dderbyniwyd gan y Gweinidog Iechyd rhwng 01 Ionawr 2013 a 31 Mawrth 2013 am imiwneiddio plant ataf os gwelwch yn dda.