function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bemmoussat-Dekkak, Soumya & Abdellaoui-Hassaine, Karima', 1],
    ['Embacher, G. & Malicky, H. & A. E & R. A', 1],
    ['Ito, Tomiko & Ohkawa, Ayuko & Hattori, Toshio', 1],
    ['Laudee, Pongsak & Kong, Chamroeun & Malicky, Hans', 1],
    ['Laudee, Pongsak & Malicky, Hans', 1],
    ['Laudee, Pongsak & Seetapan, Kriengkrai & Vongsombath, Chanda', 1],
    ['Malicky, H.', 15],
    ['Malicky, Hans', 10],
    ['Malicky, Hans & Ivanov, Vladimir D. & Melnitsky, Stanislav I.', 1],
    ['Malicky, Hans & Laudee, Pongsak', 1],
    ['Oláh, János & Johanson, Kjell Arne', 1],
    ['Peng, Lang & Deng, Zhen & Zhang, Yu-hua & Wang, Meng', 5],
    ['Peng, Lang & Wang, Bei-Xin & Sun, Chang-Hai', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=45)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 13, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);