function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bemmoussat-Dekkak, Soumya & Abdellaoui-Hassaine, Karima', 4],
    ['Cartwright, David I. & Dostine, Peter', 1],
    ['Chvojka, Pavel', 2],
    ['Chvojka, Pável & Gibon, Francois-Marie', 1],
    ['Embacher, G. & Malicky, H. & A. E & R. A', 1],
    ['Gibon, François-Marie', 7],
    ['Johanson, Kjell Arne', 2],
    ['Johanson, Kjell Arne & Oláh, János', 7],
    ['Malicky, H.', 30],
    ['Malicky, H. & Ivanov, V. & Melnitsky, S.', 7],
    ['Malicky, Hans', 7],
    ['Malicky, Hans & Laudee, Pongsak', 1],
    ['Melnitsky, Stanislav I. & Ivanov, Vladimir D.', 1],
    ['Peng, Lang & Deng, Zhen & Zhang, Yu-hua & Wang, Meng', 2],
    ['Peng, Lang & Ge, Xin-Yu & Sun, Chang-Hai & Wang, Bei-Xin', 5],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=80)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);