How accurate is it to say that there were radical improvements in health care in the years 1918-1939?

As with any History A Level question, we need plan the essay, first by finding 3 main body paragraphs. For healthcare these could be access, quality and organisation. Then we need to decide for each factor whether it constituted a radical improvement.
For example, my essay structure would be:-Access:Consistently dependent on wealth throughout this periodSome examples of better access, eg compulsory TB sanatoria 1921 and the establishment of the Finsbury Healthcare Centre (South-East focused)However on balance not enough improvement to be 'radical'. (refer back to the essay title)
-Quality:Reliance on home remediesWorkhouse or voluntary medical services poor qualityTeaching hospitals centred around London good, but regional diversitySo again, not 'radical improvement'.
-Organisation:Ministry of Health est 1918Emergency Medical Service 1939 (nationalised hospitals for war effort)Public healthcare initiatives eg against diphtheria*Changes limited by economy and resistance from GPsConservatives not keen on interventionist policySo no radical improvement
Then to conclude, clarify that no radical improvements occurred, though healthcare was ultimately dependent on region and class.