function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amon, Diva J & Ziegler, Amanda F & Drazen, Jeffrey C', 2],
    ['Arnes-Urgelles, Camila & Buglass, Salome & Ahyong, Shane T.', 2],
    ['Cardoso, Irene A. & Burukovsky, Rudolf N.', 4],
    ['D\'Acoz, Cédric D\'Udekem & Degrave, Sammy', 10],
    ['Gan, Zhibin & Li, Xinzheng', 3],
    ['Gerdes, Klaas & Kihara, Terue Cristina & Martinez Arbizu, Pedro', 3],
    ['González, José A.', 1],
    ['Hernandez-Payan, J. C. & Hendrickx, M. E.', 2],
    ['Komai, Tomoyuki & Segonzac, Michel', 2],
    ['Martin, Joel W. & Haney, Todd A.', 3],
    ['Souza-Filho, Jesser Fidelis De', 1],
    ['Wicksten, Mary K.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);