function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Handal, Adil Y. & Torstensson, Anders & Wulff, Angela', 12],
    ['Alibert, Marie & Hamilton, Paul B. & Pienitz, Reinhard', 11],
    ['Bahls, Loren', 7],
    ['Chudaev, Dmitry & Jüttner, Ingrid & Levkov, Zlatko', 3],
    ['Ferreira da Silva, Juliana & Oliveira, Maria Angélica', 29],
    ['GRAEFF, C. L. & KOCIOLEK, J. P. & RUSHFORTH, S. R.', 2],
    ['Glushchenko, Anton M. & Kociolek, John Patrick', 4],
    ['Grizancic, Lana & Baricevic, Ana & Smodlaka Tankovic, Mirta', 2],
    ['Joh, Gyeongje', 24],
    ['Jovanovska, Elena & Wilson, Mallory C. & Hamilton, Paul B.', 25],
    ['Novis, Phil M. & Braidwood, Jasmine & Kilroy, Cathy', 5],
    ['Pavlov, Aleksandar & Levkov, Zlatko & Williams, David M.', 28],
    ['Vijver, Bart Van De & Zidarova, Ralitsa', 5],
    ['Zidarova, Ralitsa & Kopalová, Kateŕina & Vijver, Bart Van De', 17],
    ['Zidarova, Ralitsa & Levkov, Zlatko & Vijver, Bart Van De', 4],
    ['Other (27)', 33]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=211)',
    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);