function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Armitage, Brian J. & Ríos González, Tomás A.', 7],
    ['Ivkovic, Marija & Doric, Valentina & Baranov, Viktor', 1],
    ['Kato, Daichi & Nakamura, Takeyuki & Tachi, Takuji', 8],
    ['Kolcsar, Levente-Peter & Oosterbroek, Pjotr', 1],
    ['Mao, Meng & Yang, Ding', 5],
    ['Ribeiro, Guilherme C. & Santos, Daubian', 5],
    ['Ribeiro, Guilherme Cunha & Lamas, Carlos José Einicker', 3],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 1],
    ['Zhang, Bing & Mao, Meng & Yang, Ding', 4],
    ['Ÿ, Jaroslav Star & Oosterbroek, Pjotr', 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);