function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Coppejans, Eric & Leliaert, Frederik & Verbruggen, Heroen', 7],
    ['Fassbender, Nico & Stefanoudis, Paris V', 1],
    ['Jarvis, Charlie', 3],
    ['Kwan, Valerie & Yip, Zhi Ting & Fong, Jenny & Huang, Danwei', 4],
    ['Liao, Lawrence M. & Belleza, Dominic Franco C.', 1],
    ['Nelson, Wendy A. & Sutherland, Judy E.', 2],
    ['Pagana, Ilaria & Marroccia, Genny & Marletta, Giuliana', 6],
    ['Vieira, Christophe & De Clerck, Olivier & Payri, Claude E.', 1],
    ['Womersley, Hugh Bryan Spencer', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    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);