def snomed_to_umls(cdb, pickle_path):
    """ Map SNOMED CDB to UMLS concepts
    """
    import pickle
    data = pickle.load(open(pickle_path, 'rb'))
    for key in data.keys():
        for umls_cui in data[key]:
            if 'S-' in str(key):
                cui = key
            else:
                cui = 'S-' + str(key)
            if cui in cdb.cui2info:
                if 'umls' in cdb.cui2info[cui]:
                    cdb.cui2info[cui]['umls'].append(umls_cui)
                else:
                    cdb.cui2info[cui]['umls'] = [umls_cui]
