sql-server - null のない tsql UNION

Question

次のクエリがあります

SELECT MONTH, COUNT(DISTINCT VISITS) AS BRAND_VISITS, NULL AS NONB_VISITS
FROM Table1
WHERE KEYWORD_TYPE = BRAND(
AND DATE >= '2013-01-01'
GROUP BY MONTH

UNION ALL

SELECT MONTH, NULL, COUNT(DISTINCT VISITS) AS NONB_VSTS 
FROM Table1
WHERE KEYWORD_TYPE = NON-BRAND
AND DATE >= '2013-01-01'
GROUP BY MONTH

次の結果が得られます。

1   352540  NULL
2   309834  NULL
3   228764  NULL
4   236054  NULL
5   218096  NULL
6   172527  NULL
1   NULL    5337
2   NULL    14120
3   NULL    9954
4   NULL    23755
5   NULL    19771
6   NULL    30797

ただし、NULLなしのインライン結果が必要です

1   352540  5337
2   309834  14120
3   228764  9954
4   236054  23755
5   218096  19771
6   172527  30797