Fig. 3From: Neem-silicone lotion and ultrasound nit comb: a randomised, controlled clinical trial treating head louse infestationComparison of peak and average force required to remove louse eggs using the NNC and ONC products as lubricants using a slip-peel tester to measure forces. White symbols indicate the forces generated when no ultrasound was applied; black symbols show the same forces under the influence of ultrasound. Each dataset was generated using a minimum of 20 louse eggs on human hairsBack to article page