function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Boddaert, Pieter', 7],
    ['Hellmayr, Charles E.', 1],
    ['Isler, Morton L. & Bravo, Gustavo A. & Brumfield, Robb T.', 1],
    ['Kolencik, Stanislav & Sychra, Oldřich & Allen, Julie M.', 4],
    ['Lima, Rafael Dantas & Silveira, Luís Fábio', 1],
    ['Machado, Tatiana Lemos da Silva & Marques de Oliveira, Uéslei', 1],
    ['Sychra, Old Ì Ich & Literák, Ivan & Apek, Miroslav Č & Martin', 1],
    ['Sánchez-Montes, Sokani & Colunga-Salas, Pablo', 1],
    ['Vigors, Nicholas Aylward', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=18)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);