function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Chen, Wen-Jou & Cheng, Jin-Hua & Jhy-Yun & Shy', 2],
    ['Minei, Hisakatsu', 1],
    ['Naruse, Tohru & Shokita, Shigemitsu & Ng, Peter K. L.', 8],
    ['Naruse, Tohru & Shokita, Shigemitsu & Shy, Jhy-yun', 1],
    ['Shih, Hsi-Te & Naruse, Tohru & Yeo, Darren C. J.', 2],
    ['Shih, Hsi-Te & Shy, Jhy-Yun', 1],
    ['Shokita, Shigemitsu & Naruse, Tohru & Fujii, Haruhiko', 1],
    ['Shy, Jhy-Yun', 1],
    ['Shy, Jhy-Yun & Shih, Hsi-Te & Mao, Jean-Jay', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=20)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);