function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aqmal-Naser, Mohamad & Ali, Norsyafira Anis', 2],
    ['Bleeker, Pieter', 2],
    ['Boulenger, George Albert', 7],
    ['Eagderi, Soheil & Mouludi-Saleh, Atta & Esmaeili, Hamid Reza', 1],
    ['Fowler, Henry Weed', 4],
    ['Hasan, Veryl & Vieira, Lucas O. & South, Josie', 1],
    ['Herre, Albert W. C. T. & Myers, G. S.', 1],
    ['Ho, Hsuan-Ching & Shao, Kwang-Tsao', 1],
    ['Hora, S. L.', 1],
    ['Jerdon, T. C.', 1],
    ['Kottelat, Maurice', 1],
    ['Matthes, H.', 3],
    ['Ng, Casey Keat Chuan & Lim, Teow Yeong & Ahmad, Amirrudin', 5],
    ['Sulaiman, Zohrah & Hui, Tan Heok & Lim, Kelvin Kok Peng', 2],
    ['Vreven, E. J.', 2],
    ['Other (15)', 15]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=49)',
    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);