function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Andriollo, Tommy & Landry, Bernard & Guibert, Bastien', 2],
    ['Butler, Arthur G.', 1],
    ['Harvey, Leon F.', 1],
    ['Joos, R Enato & Fritsch, Dieter & Bryner, Rudolf', 1],
    ['Kerschbaum, Walter & Standfest, Johann', 1],
    ['Mbata, Keith J. & Prins, Jurate De', 1],
    ['Volynkin, Anton V. & Matov, Alexey Yu. & Chen, Liusheng', 2],
    ['Weidlich, Michael', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);