function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bossert, Silas', 4],
    ['Delphia, Casey M. & Griswold, Terry & Reese, Elizabeth G.', 2],
    ['Hopfenmüller, Sebastian', 3],
    ['Lhomme, Patrick', 2],
    ['RAMOS, KELLI S. & KAWADA, RICARDO & BRANDÃO, CARLOS ROBERTO F.', 1],
    ['Reese, Elizabeth G. & Burkle, Laura A. & Delphia, Casey M.', 3],
    ['Risch, Stephan & Roberts, Stuart P. M. & Smit, Jan', 2],
    ['Romankova, Tatiana G. & Astafurova, Yulia V.', 16],
    ['Stephenson, Phillip L & Griswold, Terry L & Arduser, Michael S', 2],
    ['Zettel, Herbert & Ockermüller, Esther & Schoder, Sabine', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=36)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);