function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Becherer', 8],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 2],
    ['Callmander, Martin W. & Durbin, Olivier D. & Lack, Hans-Walter', 2],
    ['Cardoso, Pedro Henrique & Neto, Luiz Menini', 6],
    ['Cardoso, Pedro Henrique & Neto, Luiz Menini & Cabral, Andressa', 3],
    ['Cardoso, Pedro Henrique & Neto, Luiz Menini & Trovó, Marcelo', 2],
    ['Cardoso, Pedro Henrique & Santos-Silva, Fernanda', 2],
    ['Cardoso, Pedro Henrique & Valério, Vanessa Imaculada Dos Reis', 52],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 3],
    ['Hess, Hans Ernst & Landolt, Elias & Hirzel, Rosmarie', 2],
    ['Jarvis, Charlie', 37],
    ['Linnaeus, Carolus', 14],
    ['Monteiro, Francisca & Costa, Esperança Da & Kissanga, Raquel', 5],
    ['Reich, Dieter & Gutermann, Walter & Bardy, Katharina', 3],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 6],
    ['Other (19)', 26]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=173)',
    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);