Nesting Oligonucleotides for Ig Heavy Chain VH3 Genes: HpH3L1 5??? CTCGAGGGCCCGCGAAAGCGGGCCCTCGAGSAGGTGCAGCTGGTGGAG (SEQ ID NO: 105) TCYGAAA 3??? where S is an equal mixture of C and G, and Y is an equal mixture of T and C HpH3L2 5??? CTCGAGGGCCCGCGAAAGCGGGCCCTCGAGGAGGTGCAG CTG TTG GAG TCT (SEQ ID NO: 106) GAAT 3??? HpH3L3 5??? CTCGAGGGCCCGCGAAAGCGGGCCCTCGAG GAG GTG CAG CTG GTG GAG ACT (SEQ ID NO: