Data relating to cancer services during the initial period of the COVID-19 (coronavirus) pandemic is available in statistical releases published prior to February 2021.
Mae data sy’n ymwneud â gwasanaethau canser yn ystod cyfnod cychwynnol pandemig COVID-19 (coronafeirws) ar gael mewn datganiadau ystadegol a gyhoeddwyd cyn mis Chwefror 2021.