Complex sentence: Two randomized placebo-controlled studies have found that antibiotics offer no sustained benefit in "chronic Lyme" patients, while another found substantial benefit, a review notes evidence of both placebo effects and significant adverse effects from such treatment.
Split into simpler sentences: Two randomized placebo-controlled studies have found that antibiotics offer no sustained benefit in "chronic Lyme" patients, while another found substantial benefit. A review notes evidence of both placebo effects and significant adverse effects from such treatment.