function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barták, Miroslav & Kubík, Štěpán', 3],
    ['Gonçalves, Ana Rita & Grootaert, Patrick & Andrade, Rui', 11],
    ['Grootaert, Patrick', 9],
    ['Grootaert, Patrick & Shamshev, Igor', 5],
    ['Grootaert, Patrick & Shamshev, Igor V.', 3],
    ['Meigen, Johann Wilhelm', 32],
    ['Shamshev, Igor & Grootaert, Patrick', 18],
    ['Shamshev, Igor V. & Grootaert, Patrick', 20],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=102)',
    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);