A method for coding spatial and quality enhancement information in scalable video coding using variable length codes. The composition includes at least one of the following compounds: isopsoralen, triptolide, baicalein, gallic acid, quercetin, gossypol-acetic acid, baicalin, berberine hydrochloride, and derivatives thereof in a sufficient amount to reduce the activity of the cervical cancer cell in the subject. The -olefins are useful as monomers and chemical intermediates. The receiver may set a timer when sending a NACK. Systems and methods for anchoring implanted sensors to various body structures is also provided.