function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barcelos, Luis MD & Rodrigues, Pedro R & Bried, Joel', 4],
    ['Boano, Giovanni & Belemsobgo, Urbain & Silvano, Fabrizio', 20],
    ['Boddaert, Pieter', 2],
    ['Dean, W. Richard J. & Åhlander, Erik & Johansson, Ulf S.', 4],
    ['Fernandez, Juan Manuel & Thomann, Luz & Fandiño, Blas', 5],
    ['Frahnert, Sylke & Turner, Donald A. & Bracker, Cordula', 5],
    ['Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L.', 3],
    ['Gustafsson, Daniel R. & Adam, Costică & Zou, Fasheng', 3],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 4],
    ['Linnaeus, Carolus', 21],
    ['Machado, Tatiana Lemos da Silva & Marques de Oliveira, Uéslei', 14],
    ['Temminck, Coenraad Jacob', 3],
    ['Vasconcelos, Marcelo Ferreira de', 3],
    ['Vieillot, Louis Pierre', 3],
    ['Vitorino, Breno Dias & Vilas Boas da Frota, Angélica', 4],
    ['Other (20)', 25]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=123)',
    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);