function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['De Villalobos, Cristina & Zanca, Fernanda', 6],
    ['Linnaeus, Carolus', 4],
    ['Lunaschi, Lia I. & Álvarez, Victor Hugo Merlo', 28],
    ['Schmidt-Rhaesa, Andreas', 14],
    ['Schmidt-Rhaesa, Andreas & Karraker, Nancy E.', 6],
    ['Schmidt-Rhaesa, Andreas & Martínez, Jesús', 3],
    ['Schmidt-Rhaesa, Andreas & Menzel, Lena', 9],
    ['Schmidt-Rhaesa, Andreas & Schwarz, Christian J.', 7],
    ['Schmidt-Rhaesa, Andreas & Yadav, Arun K.', 4],
    ['Villalobos, C. De & Zanca, F.', 4],
    ['Villalobos, C. De & Zanca, F. & Schmidt-Rhaesa, A.', 6],
    ['Villalobos, Cristina De & Zanca, Fernanda', 7],
    ['Villalobos, Cristina De & Zanca, Fernanda & Salas, Liliana', 5],
    ['Villalobos, Cristina De & Zanca, Fernanda & Spiridonov, Sergei', 4],
    ['Zanca, Fernanda & Schmidt-Rhaesa, Andreas', 5],
    ['Other (13)', 21]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=133)',
    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);