Sentence examples for two weeks were required from inspiring English sources

Two weeks were required before increasing any dose, substituting the active principle, or switching to a combined drug therapy.

A threshold aging period of about one to two weeks was required before virus attenuation began.

In the nine studies examining minor depression a minimum duration of two weeks was required.

Urgent specialist referral within two weeks is required for endoscopic investigation for patients with dysphagia.

For one patient, a treatment break of two weeks was required owing to acute radiation dermatitis.

In the present study we demonstrate for the first time that only a few minutes of high intensity interval exercise performed over two weeks is required to substantially improve both insulin action and glucose homeostasis in sedentary young males.

Withdrawal of tetracycline (Tet-OFF) for at least two weeks was required to achieve ~4-fold increase in expression level of Nox2 mRNA and ~1.8-fold increase in ROS levels in ECs (data not shown).

Appleby said a minimum of six weeks was required for local IRT training alone.

Two to three weeks are required for dissociated, embryonic rat neuronal cultures to mature to the point that they regularly produce spontaneous and evoked responses.

An average of two to three weeks is required for an egg to develop into an adult, and there may be up to 10 generations each year.

Two to three weeks are required to produce grafts after the biopsy is obtained.