Which preposition to use with specialised

in Occurrences 16%

Here two Englishmen, soldiers of fortune or misfortune, as the case might be, who had specialised in recent Mexican revolutions, till the fall of Huerta brought them, too, to unemployment; an Irishman there, for whom the President of Costa Rica had promised a swift death against a blank wall.

to Occurrences 3%

Murphy, but the way, seems to have specialised to some extent in saint's Lives and to have imbued his disciples with something of the same taste.

into Occurrences 2%

It is this Mesozoic continent (which may well have lain in the neighbourhood of what are now the shores of the North Pacific Ocean) which I suppose to have been occupied by the Mesozoic Monodelphia; and it is in this region that I conceive they must have gone through the long series of changes by which they were specialised into the forms which we refer to different orders.

in Occurrences 1%

An unwary man obsessed with that idea would be very likely to assume without consideration that men were less specialised in a barbaric state of society than they are to-day.

than Occurrences 1%

Or, if we go back to the older half of the Mesozoic epoch, how truly surprising it is to find every order of the Reptilia, except the Ophidia, represented; while some groups, such as the Ornithoseclida and the Pterosauria, more specialised than any which now exist, abounded.

Which preposition to use with  specialised