function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bernhard A. Huber & Charles M. Warui', 19],
    ['Bernhard A. Huber & Philippe Le Gall', 3],
    ['Dean, David Allen', 1],
    ['HUBER, BERNHARD A.', 57],
    ['Huber, Bernhard A.', 1],
    ['Huber, Bernhard A. & Kwapong, Peter', 3],
    ['Jäger, Peter', 1],
    ['Tang, Jiaxin & Liang, Wei & Shi, Haitao & Gao, Caixia', 1],
    ['Yao, Zhiyuan & Kioko, Grace M. & Kioko, Esther N. & Li, Shuqiang', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=89)',
    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);