Add spaces: Inclinicalstudies,significantconcomitantpositivepatchtestreactionshavebeenobservedinvolvingcolophoniumandreactionstofragrancemarkers(fragrancemixandbalsamofPeru)amongconsecutivepatients(2-4).

Answer: In clinical studies, significant concomitant positive patch test reactions have been observed involving colophonium and reactions to fragrance markers (fragrance mix and balsam of Peru) among consecutive patients (2-4).
box:canistertube250and1000ml.

box: canister tube 250 and 1000 ml.
[Q]: [Ontopoflowerfuelscosts,CO2emissionsareofcoursereducedtothesamedegree.]
[A]: [On top of lower fuels costs, CO2 emissions are of course reduced to the same degree.]
Problem: Add spaces: IorderallmilitaryunitsanddetachmentstoremainintheirbarracksuntilfurtherordersfromtheStaffoftheMilitaryDistrict.

Spaces added: I order all military units and detachments to remain in their barracks until further orders from the Staff of the Military District.
This text is missing some spaces, please add them: CheckratesandavailabilityforEldoradoInnandSuites.Thenproceedtobooking.
Check rates and availability for Eldorado Inn and Suites. Then proceed to booking.
[Q]: [DuringtheWarringStatesperiodinChinafrom480to221BCEthereweresixmajorstatesvyingfordomination.]
[A]:
[During the Warring States period in China from 480 to 221 BCE there were six major states vying for domination.]