function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Broad, Gavin R. & Livermore, Laurence', 14],
    ['Engel, Michael S.', 1],
    ['Gary A. P. Gibson & Lucian Fusu', 1],
    ['Madl, Michael', 7],
    ['Plecas, Milan & Zikic, Vladimir & Kocic, Korana', 2],
    ['Salden, Tobias & Peters, Ralph S.', 72],
    ['Trietsch, Carolyn & Mikó, István & Deans, Andrew R.', 8],
    ['Ulmer, Jonah M & Miko, Istvan & Deans, Andrew R', 2],
    ['Ulmer, Jonah M. & Mikó, István & Deans, Andrew R.', 1],
    ['Zehntner, L.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=109)',
    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);