| http://digfir-published.macmillanusa.com/lodish_animation/a0305_sds_gel_electro.html | Chapter 3. SDS Gel Electrophoresis
| 519bca41b11c0f136800004c |
| http://digfir-published.macmillanusa.com/lodish_animation/a0305_sds_gel_electro_dlap.xml | DLAP questions | 519bca41b11c0f136800004c |