function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ito, Tomiko & Hayashi, Yumiko & Shimura, Noriyoshi', 3],
    ['Johanson, Kjell Arne & Mary, Nathalie', 1],
    ['Malicky, H.', 4],
    ['Malicky, Hans & Melnitsky, Stanislav I. & Ivanov, Vladimir D.', 1],
    ['Mey, Wolfram & Malicky, Hans', 3],
    ['Oláh, János & Johanson, Kjell Arne', 35],
    ['Poepetch, Sakol & Prommi, Taeng-On & Laudee, Pongsak', 1],
    ['Suwannarat, Nannaphat & Malicky, Hans & Laudee, Pongsak', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=49)',
    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);