function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aneesh, Panakkool Thamban & Helna, Ameri Kottarathil', 4],
    ['Hogans, W. E.', 47],
    ['Luque, José L. & Tavares, Luiz E. R.', 1],
    ['Maran, B. A. Venmathi & Moon, Seong Yong & Oh, Sung-Yong', 2],
    ['Raja, Kuzhanthaivel & Saravanakumar, Ayyapan', 8],
    ['Ramdane, Zouhir & Trilles, Jean-Paul', 4],
    ['Uyeno, Daisuke', 16],
    ['Uyeno, Daisuke & Nagasawa, Kazuya', 3],
    ['Uyeno, Daisuke & Wakabayashi, Kaori & Nagasawa, Kazuya', 1],
    ['Yumura, Nanami & Nishikawa, Jun & Ohtsuka, Susumu', 2],
    ['Zeng, Qianhui & Lin, Yejie', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=89)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);