36., 37. & 38.
Still remembering the words of Dr Hattori:
なんにもしないよりマシだ
It's better than doing nothing
なんにも しない より マシ だ
nothing not.do more.than better is.
なんに = emphatic version of なに (何), and with no it makes an absolute, with negative verb → nothing
A より B = B rather than A;
マシ ＝ better; 増し is the nominalization (trough the 連用形 form) of verb 増す to increase, to grow. So 増し means actually increase, growth. And from there, in comparisons, the meaning of “better”. In such use it is common to write in katakana.
お前は医者だ
You are a doctor
新人だろうが半人前だろうがお前は医者なんだ…
Whether you are a newbie or yet inexperienced, you are a doctor
(to Zizka: actually those same words keep coming back from Episode 1 
)
半人前 (はんにんまえ) : that word is still difficult… I think the meaning here is the idea of “unfinished”, “unpolished”; so inexperienced.
(人前 is a portion of food; so 半人前 reminds me of French “demi-portion” (the meaning is different however, but the word making similar)
The construct with two parallel … だろうが (cuppola in a form expressing uncertainty + “but”) is kind of “whether … or …”
…なんだ on the contrary expresses big certainty (at first I had written “you are for sure a doctor”; but the natural way to put it on English wold be “you are a doctor” with an emphasis on “are”)
Saitou says:
僕は医者だ…！
I am a doctor!