function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ament, Danilo César & Brown, Brian V.', 27],
    ['Brown, Brian V.', 9],
    ['Brown, Brian V. & Hartop, Emily A. & Wong, Maria A.', 30],
    ['DISNEY, R. H. L.', 41],
    ['DISNEY, R. Henry L.', 9],
    ['DISNEY, R. Henry L. & WINQVIST, Kaj', 15],
    ['Disney, R. H. L.', 11],
    ['Disney, R. H. L. & Prescher, S. & Ashmole, N. P.', 42],
    ['Disney, R. Henry L.', 19],
    ['Disney, R. Henry L. & Durska, Ewa', 18],
    ['Disney, R. Henry L. & Kurina, Olavi & Tedersoo, Leho', 10],
    ['García-Romera, Carlos & Barrientos, Jose Antonio', 8],
    ['Hartop, Emily A. & Brown, Brian V. & Disney, R. Henry L.', 55],
    ['Henry, R. & Bøggild, Esben', 32],
    ['Khameneh, Roya Namaki & Khaghaninia, Samad & Disney, R. Henry L.', 21],
    ['Other (33)', 81]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=428)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);