function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ahyong, Shane T. & Chan, Tin-Yam & Bouchet, Philippe', 2],
    ['Alves-Júnior, Flavio De Almeida', 2],
    ['Chang, Su-Ching & Chan, Tin-Yam', 7],
    ['Chang, Su-Ching & Chan, Tin-Yam & Kumar, Appukuttannair Biju', 4],
    ['Chang, Su-Ching & Wang, Teng-Wei & Chan, Tin-Yam', 1],
    ['Charbonnier, Sylvain & Garassino, Alessandro & Pasini, Giovanni', 3],
    ['Gašparič, Rok & Tshudy, Dale & Chan, Tin-Yam & Ćorić, Stjepan', 1],
    ['Gerdes, Klaas & Kihara, Terue Cristina & Martinez Arbizu, Pedro', 1],
    ['González, José A.', 1],
    ['Karasawa, Hiroaki & Ohara, Masaaki & Kato, Hisayoshi', 1],
    ['Leach, William Elford', 1],
    ['Mantelatto, Fernando L. & Al, Et', 4],
    ['Martin, Joel W. & Haney, Todd A.', 2],
    ['Watabe, Hajime & Iizuka, Eiichi', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 14, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);